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NCERT exemplar Class 12 Chemistry solutions chapter 14 highlights the importance of the delicate and simultaneous chemical reactions in the body, which leads to life. We are made up of complex chemicals called Biomolecules like proteins, carbohydrates, lipids, nucleic acids, etc., which interact freely and sustain life. Biomolecules are the basic building blocks of a body; as several tiny pearls make up a rosary, biomolecules make up a living being. By preparing this NCERT chapter using Class 12 Chemistry NCERT exemplar solutions chapter 14, you'll be able to identify the properties and characteristics of biomolecules, classify them based on their structures, understand the difference between DNA and RNA and describe the role of biomolecules in the biosystem. NCERT exemplar Class 12 Chemistry chapter 14 solutions given on this page would help you look closer to how life sustains and score well in the 12 boards by clearing all your doubts by going over the basic concepts.
Also, check - NCERT Solutions for Class 12, other subjects
Question:1
Glycogen is a branched chain polymer of -D-glucose units in which chain is formed by glycosidic linkage whereas branching occurs by the formation of glycosidic linkage. Structure of glycogen is similar to __________.
(i) Amylose
(ii) Amylopectin
(iii) Cellulose
(iv) Glucose
Answer:
The answer is the option (ii). Structure of glycogen is very similar to the structure of amylopectin due to the glycosidic linkage in chain and glycosidic linkage present in branching. Thus, Option (ii) is the answer.
Question:2
Which of the following polymer is stored in the liver of animals?
(i) Amylose
(ii) Cellulose
(iii) Amylopectin
(iv) Glycogen
Answer:
The answer is the option (iv). The liver of animals takes up excess glucose and converts it into glycogen for storage. So, option (iv) is the answer.
Question:3
Sucrose (cane sugar) is a disaccharide. One molecule of sucrose on hydrolysis gives _________.
(i) 2 molecules of glucose
(ii) 2 molecules of glucose + 1 molecule of fructose
(iii) 1 molecule of glucose + 1 molecule of fructose
(iv) 2 molecules of fructose
Answer:
The answer is the option (iii).Each molecule of sucrose gives option (iii) 1 molecule of glucose + 1 molecule of fructose when hydrolysed.
Question:4
Which of the following pairs represents anomers?
Answer:
The correct answer is Option (C) because it shows the characteristics of anomers that is it differs only in the configuration of the hydroxyl group at C-1 position.
Question:5
Proteins are found to have two different types of secondary structures viz. -helix and -pleated sheet structure. -helix structure of the protein is stabilised by:
(i) Peptide bonds
(ii) van der Waals forces
(iii) Hydrogen bonds
(iv) Dipole-dipole interactions
Answer:
The answer is the option (iii). As these proteins are twisted in the right-hand screw fashion so each -NH group is attached to an amino acid through option (iii) Hydrogen bonds
Question:6
Due to the presence of reducing groups in glycosidic bond formation, Option (B) is the answer
Question:7
Which of the following acids is a vitamin?
(i) Aspartic acid
(ii) Ascorbic acid
(iii) Adipic acid
(iv) Saccharic acid
Answer:
Option (ii) Ascorbic acid is the right answer as it is also known as Vitamin C, found in dairy products.
Question:8
Dinucleotide is obtained by joining two nucleotides together by a phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are. Are these linkages present?
(i) 5′ and 3′
(ii) 1′ and 5′
(iii) 5′ and 5′
(iv) 3′ and 3′
Answer:
The answer is the option (i). As the linkage is between phosphoric acid with a nucleotide at the 5’ position, Option (i) 5′ and 3′ is the right answer.
Question:9
Nucleic acids are the polymers of ______________.
(i) Nucleosides
(ii) Nucleotides
(iii) Bases
(iv) Sugars
Answer:
The answer is the option (ii). As nucleic acid is composed of units containing a sugar, a base and a phosphate molecule. It is a polymer of option (ii) Nucleotides
Question:10
Which of the following statements is not true about glucose?
(i) It is an aldohexose.
(ii) On heating with HI, it forms n-hexane.
(iii) It is present in furanose form.
(iv) It does not give 2,4-DNP test.
Answer:
The answer is the option (iii). It is present in furanose form is the right answer as all other properties are exhibited by a glucose molecule.
Question:11
Each polypeptide is a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be ____________.
(i) primary structure of proteins.
(ii) secondary structure of proteins.
(iii) tertiary structure of proteins.
(iv) quaternary structure of proteins.
Answer:
The answer is the option (i). This type of structure in which each polypeptide is a protein has amino acids linked with each other in a specific sequence is termed as Option (i) primary structure of proteins.
Question:12
DNA and RNA contain four bases each. Which of the following bases is not present in RNA?
(i) Adenine
(ii) Uracil
(iii) Thymine
(iv) Cytosine
Answer:
The answer is the option (iii). RNA is less stable genetic material due to the presence of uracil whose structure is less stable than thymine present in DNA. So, Option (iii) Thymine is the right choice.
Question:13
Which of the following B group vitamins can be stored in our body?
(i) Vitamin B1
(ii) Vitamin B2
(iii) Vitamin B6
(iv) Vitamin B12
Answer:
The correct option is option (iv) Vitamin B12 as it is an insoluble vitamin, so the body is capable of storing it.
Question:14
Which of the following bases is not present in DNA?
(i) Adenine
(ii) Thymine
(iii) Cytosine
(iv) Uracil
Answer:
The answer is the option (iv). Due to DNA being more stable genetic material, it contains cytosine instead of uracil due to the higher stability of the molecule. So, Option (iv) Uracil is the answer.
Question:15
Three cyclic structures of monosaccharides are given below which of these are anomers.
(i) I and II
(ii) II and III
(iii) I and III
(iv) III is anomer of I and II
Answer:
The answer is the option (i). Anomers are the compounds are the cyclic structures of monosaccharides which differ at the carbon-1 in their structure. So, option (i) I and II is the right answer.
Question:16
Which of the following reactions of glucose can be explained only by its cyclic structure?
(i) Glucose forms pentaacetate.
(ii) Glucose reacts with hydroxylamine to form an oxime.
(iii) Pentaacetate of glucose does not react with hydroxylamine.
(iv) Glucose is oxidised by nitric acid to gluconic acid
Answer:
The answer is the option (iii). The property of glucose being non-reactive with hydroxylamine determines the absence of the -CHO group. This property is defined only by the cyclic structure of glucose. Therefore, option (iii) Pentaacetate of glucose does not react with hydroxylamine is the correct answer.
Question:17
Optical rotations of some compounds along with their structures are given below which of them have D configuration.
(i) I, II, III
(ii) II, III
(iii) I, II
(iv) III
Answer:
The answer is the option (i). All of the given compounds have D-configuration due the presence of -OH group of asymmetric carbon on the right side. So, Option (i) I, II, III is the answer.
Question:18
Structure of a disaccharide formed by glucose and fructose is given below. Identify anomeric carbon atoms in monosaccharide units.
(i) ‘a’ carbon of glucose and ‘a’ carbon of fructose.
(ii) ‘a’ carbon of glucose and ‘e’ carbon of fructose.
(iii) ‘a’ carbon of glucose and ‘b’ carbon of fructose.
(iv) ‘f’ carbon of glucose and ‘f ’ carbon of fructose.
Answer:
The answer is the option (iii). The carbon present in the glucose or fructose molecule right adjacent to the oxygen atom is known as anomeric carbon. This concludes that option (iii) is the answer.
Question:19
Three structures are given below in which two glucose units are linked. Which of these linkages between glucose, units are between and and which linkages are between and ?
(i) (A) is between and , (B) and (C) is between and
(ii) (A) and (B) are between and , (C) is between and
(iii) (A) and (C) is between and , (B) is between and
(iv) (A) and (C) is between and , (B) is between and
Answer:
The correct option is option (iii) because the numbering, in case of glucose, starts from the -O atom and ends at the last . This means the (iii) (A) and (C) is between and, (B) is between and is the right answer.
Question:20
Carbohydrates are classified on the basis of their behaviour on hydrolysis and also as reducing or non-reducing sugar. Sucrose is a __________.
(i) monosaccharide
(ii) disaccharide
(iii) reducing sugar
(iv) non-reducing sugar
Answer:
The answer is the option (ii) and (iv). As sucrose gives an equimolar solution of glucose and fructose on hydrolysis and the of the sugar being non-reducing sugar due to its involvement in glycosidic bond formation it is a disaccharide. Making Option (ii) and (iv) as the correct answers.
Question:21
Proteins can be classified into two types on the basis of their molecular shape i.e., fibrous proteins and globular proteins. Examples of globular proteins are :
(i) Insulin
(ii) Keratin
(iii) Albumin
(iv) Myosin
Answer:
The answer is the option (i) and (iii). Because of the ability to dissolve in water and having their polypeptide chain coiled around the spherical shape, Option (i) Insulin and (iii) Albumin are the correct answers.
Question:22
Which of the following carbohydrates are branched polymer of glucose?
(i) Amylose
(ii) Amylopectin
(iii) Cellulose
(iv) Glycogen
Answer:
Option (ii) and (iv) are the correct answers that is Amylopectin and Glycogen because it is a form of carbohydrate storing in animal bodies whereas amylose is constituted of 80-85% starch. It is also a branched polymer of glucose in which branching takes place by glycosidic linkage.
Question:23
The answer is the option (ii) and (iv). In case of amino acids, the number of amino and carboxyl groups in their structure determines their acidic nature, more carboxyl groups increase their acidic nature. From the compounds given above, only (ii) and (iv) have only one amino group and two carboxyl groups. Therefore option (ii) and (iv) are the answers.
Question:24
Lysine, is _______________
(i) -Amino acid
(ii) Basic amino acid
(iii) Amino acid synthesised in the body
(iv) Amino acid
Answer:
The answer is the option (i), (ii), and (iii). As the structure of Lysine contains an amino group in its side chain, the compound is basic in nature. And since the amino acids present in the body have the ability to accept H+ more easily than water. This categorises Lysine as an Amino acid synthesised in the body. The correct options are option (i), (ii) and (iii) are the answers.
Question:25
Which of the following monosaccharides are present as five-membered cyclic structure (furanose structure)?
(i) Ribose
(ii) Glucose
(iii) Fructose
(iv) Galactose
Answer:
The answer is the option (i) and (iii). Due to the presence of polyhydroxyl carbonyl compound of 5 carbon atoms, ribose and fructose show the furanose structure containing five-membered cyclic structure. Thus, Option (i) and (iii) are the answers.
Question:26
In fibrous proteins, polypeptide chains are held together by ___________.
(i) van der Waals forces
(ii) disulphide linkage
(iii) electrostatic forces of attraction
(iv) hydrogen bonds
Answer:
The answer is the option (ii) and (iv). To obtain the characteristic fibre-like structure, the fibrous proteins are held together by) hydrogen bonds and disulphide linkage making Option (ii) and (iv) the right answers.
Question:27
Which of the following are purine bases?
(i) Guanine
(ii) Adenine
(iii) Thymine
(iv) Uracil
Answer:
The answer is the option (i) and (ii). The compounds under purines contain a six membered and a five membered ring with nitrogen infused together to make the chemical structure. Thus, the right options are (i) Guanine and (ii) Adenine
Question:28
Which of the following terms are correct about enzyme?
(i) Proteins
(ii) Dinucleotides
(iii) Nucleic acids
(iv) Biocatalysts
Answer:
The answer is the option (i) and (iv). Some of the main characteristics of enzymes are that they are the biocatalyst and comes under the protein category. Their role in biochemical reactions is extremely specific. So, the correct option is (i) Proteins and (iv) Biocatalysts.
Question:29
Milk contains lactose, an oligosaccharide sugar. It consists of two subunits of monosaccharide, namely glucose and galactose. Such oligosaccharides sugars composed of two monosaccharide units are known as disaccharides.
Question:30
How do you explain the presence of all the six carbon atoms in glucose in a straight chain?
Answer:
Glucose sugar contains six carbon atom chain, and this occurrence is due to the prolonged heating in the presence of hydrogen iodide (HI). This results in an n-hexane, thus forming a straight chain of six carbon atoms.
Question:31
The characteristic formation feature of nucleoside it that it requires five-carbon sugar with a nitrogenous base attached to its 1’ position. And in this case, the phosphoric acid present in the five-carbon sugar is linked to the 5’ position of the nucleoside molecules converting it into a nucleotide molecule.
Question:32
Name the linkage connecting monosaccharide units in polysaccharides.
Answer:
The linkage present between monosaccharides is a glycosidic linkage which constitutes a polysaccharide. In this linkage, an oxide replaces a water molecule and forms a bond between two monosaccharide units.
Question:33
Under what conditions glucose is converted to gluconic and saccharic acid?
Answer:
Glucose being a six-carbon sugar easily gets converted into gluconic acid when treated with mild oxidising agents such as Br2 water. To convert glucose into saccharic acid (dicarboxylic acid), it is treated with nitric acid.
Question:34
Answer:
To categorise fructose, knowing its molecular formula and the functional group is important as they are categorised on the basis of the number of carbon atoms present in the molecule. The formula being and as it has ketone group present, so it is placed in the class of ketohexoses
Question:35
To identify whether the compound configuration is ‘D’ or ‘L’ we check the presence of the -OH group. As the -OH group is present on the left side of the fifth carbon atom, the compound configuration is ‘L’.
Question:36
The compound being aldopentoses, the configuration of both of them is ‘D’. The naming of ribose would be -D-ribose whereas IUPAC name for 2-deoxyribose is -D-2-deoxyribose
Question:37
Which sugar is called invert sugar? Why is it called so?
Answer:
The common example of invert sugar is sucrose. It is found naturally in sugarcane and sugar beet. The reason for being named invert sugar is that due to hydrolysis of sucrose, there is a change in the sign of rotation from Dextro (+) to laevo (–)
Question:38
To form a polypeptide chain, the amino acid should be linked to the α-carbon in the molecule. The types of amino acids forming a polypeptide are α-amino acids and alpha-amino acids
Question:39
When a polypeptide chain is twisted in a right-handed screw fashion to make a stable α-Helix chain, the interaction taking place includes the bonding of each amino acid residues’ -NH group with the in the adjacent turn of the helix.
Question:40
Answer:
Oxidoreductases are the enzymes named after their role in of oxidative reduction in redox reactions. They act as a catalyst, one of the examples of these enzymes is Alcohol Dehydrogenase that plays the role of reducing the human body’s’ alcohol levels during ingestion of alcohol
Question:41
During curdling of milk, what happens to sugar present in it?
Answer:
The process of curdling is initiated due to the presence of bacteria that converts the milk into curd and the sugar present in milk, lactose, gets converted into lactic acid.
Question:42
How do you explain the presence of five —OH groups in the glucose molecule?
Answer:
To prove the presence of 5 -OH groups present in glucose molecule, it is treated with acetic anhydride in the presence of . This results in acetylation and forms glucose pentaacetate thus confirming the presence of 5 -OH groups
Question:43
Why does compound (A) give below not form an oxime?
Answer:
Ten me of the given compound is glucose pentaacetate. Due to the presence of a free (carbonyl) group in the glucose molecule, it is able to form oxime. But after being converted into glucose pentaacetate, the no longer has the free carbonyl group is it is not able to make an oxime when treated with hydroxylamine.
Question:44
Why must vitamin C be supplied regularly in diet?
Answer:
There are two categories of vitamins, water-soluble and non-soluble. The water-soluble vitamins can’t be stored in the body, so we need a regular uptake these vitamins. Vitamin C is a water-soluble vitamin, so it is essential to include it in the daily diet plan.
Question:45
Sucrose is dextrorotatory but the mixture obtained after hydrolysis is laevorotatory. Explain.
Answer:
The pure nature of sucrose in aqueous solution is dextrorotatory, which means it rotates plane-polarised light entering the solution to the right. But when it is hydrolysed, it gets converted into dextrorotatory D-(+)-glucose and laevorotatory D-(-)-fructose in equimolar concentration. Due to this, the sign of rotation shifts from Dextro (+) to laevo (–). Thus, this makes the overall hydrolysed solution laevorotatory.
Question:46
Amino acids behave like salts rather than simple amines or carboxylic acids. Explain.
Answer:
The basic structure of an amino acid consists of a group and a group. When amino acids are in an aqueous solution, the gains a proton whereas the group loses a proton resulting in a zwitterion which is a salt. Thus, amino acids exhibit the properties of salt in aqueous solution.
Question:47
Structures of glycine and alanine are given below. Show the peptide linkage in glycylalanine.
Answer:
To form glycylalanine. Peptide linkage between the hydroxyl group of glycine is attached to the amine group of alanine takes place.
Question:48
When the protein is in its native form, it is intact with its secondary and tertiary structures along with primary structure. These amino acid residues are connected via hydrogen bonds and the intermolecular forces. But when it is subjected to changes like temperature and pH, these structures get destroyed except the primary structure due to the disturbance in the hydrogen bonds. This process unfolds the native protein and is called denaturation of proteins
Question:49
The energy required in a particular reaction mainly depends on the types of bond that needs to be broken; thus, it dictates the energy required. If the bonds are strong, the reaction requires a large sum of energy and time. These factors can be changed by the addition of a biocatalyst; enzymes are the most common type of biocatalysts. The catalyst reduces the activation energy of the reaction, thus the hydrolysis of the enzyme sucrose very less time compared to the traditional acidic hydrolysis.
Question:50
How do you explain the presence of an aldehydic group in a glucose molecule?
Answer:
To confirm the presence of an aldehyde group is glucose molecule, it is treated with a mild oxidising agent such as bromine water which forms carboxylic acid gluconic acid. This confirms the presence of the aldehyde group
Question:51
A nucleotide is a polymer of multiple subunits of nucleosides held together by linkage of phosphoric acid at 5′-position of pentose sugar. These nucleotides are further joined at the 5′ and 3′ carbon atoms of the sugar moiety, this linkage is known as phosphodiester linkage, and it results in dinucleotide. The key involvement in this linkage is of phosphoric acid.
Question:52
What are glycosidic linkages? In which type of biomolecules are they present?
Answer:
Glycosidic linkage is very common in saccharides; it occurs when the loss of water molecule happens due to an oxide linkage formed between two molecules of monosaccharides. This type of joining of two monosaccharides via an oxygen atom is termed as glycosidic linkage. The linkage is mostly observed in trisaccharides, polysaccharides, disaccharides, etc.
Question:53
Answer:
Starch contains a-glucose, while cellulose has -D glucose units. In the linking of starch and glucose, glycosidic a-linkage is seen, and in case of cellulose, the monosaccharide glucose units are joined by glycosidic -linkage
Question:54
How do enzymes help a substrate to be attacked by the reagent effectively?
Answer:
Functioning of enzymes in the human body, the interaction between substrate and reagent is crucial to start the process. This is done by the active site of enzyme which holds the substrate for effective interaction with the reagent.
Question:55
Describe the term D- and L-configuration used for amino acids with examples.
Answer:
There are only two types of sugar present in the amino acid family: definitively configured D-Family and L-Family. The key difference in the configuration of these families is decided by the glyceraldehyde. The presence of glyceraldehyde is taken as the standard, and it can be found in two forms:
L-(-)-Glyceraldehyde configuration and the D-(+)-Glyceraldehyde. The positioning of the -OH group of the carbon adjacent to CH2OH categorises the configuration. If the group is attached to the right side, then it would be of D-configuration but the positioning of -OH group on the left makes it of L-configuration. The natural sugars present are all of D-configuration.
Question:56
How will you distinguish and hydroxyl groups present in glucose? Explain with reactions.
Answer:
To distinguish between the and hydroxyl groups of glucose via the chemical method, presence of 5-OH groups can indicate. The reaction involves adding a few drops of a cone. in the presence of pyridine, this results in the formation of forms Penta-acetyl derivative. This also indicates that from 5-OH groups, one group is primary (1°) alcoholic while others are secondary (2°) alcoholic groups.
The other way to determine their presence is by oxidising gluconic acid (Glucose) with HNO3, this forms a dicarboxylic acid named saccharic acid. The result indicates that only one of the -OH group oxidised and formed -COOH group and the rest of the secondary -OH groups are unable to oxidise due to absence of drastic conditions.
Question:57
Answer:
An egg contains a soluble globular protein called albumin, which, when heated, transforms into insoluble fibrous protein. This denaturation results in the loss of biological activity, as well as the secondary and the tertiary structures of proteins, gets destroyed. But the primary structure of α-amino acids does not get denatured.
Question:58
Match the vitamins given in Column I with the deficiency disease they cause given in Column II.
COLUMN I (Vitamins) | COLUMN II (Diseases) |
i. Vitamin A | a. Pericious anameia |
ii. Vitamin B1 | b.Increased blood clotting time |
iii. Vitamin B12 | c.Xerophthalamia |
iv. Vitamin C | d. Rickets |
v. Vitamin D | e. Muscular weakness |
vi. Vitamin E | f. Night blindness |
vii. Vitamin K | g. Beri beri |
h. Bleeding gums | |
i. Ostemomalacia |
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Answer:
The above-mentioned columns describe the types of vitamins and the resulting diseases caused by their deficiency. The correct match of the options is-
Question:59
Match the following enzyme given in Column I with the reactions they catalyse given in Column II.
Column I | Column II |
i. Invertase | a. Decomposition of urea into and |
ii. Maltase | b. Conversion of glucose into ethyl alcohol |
iii. Pepsin | c.Hydrolysis of maltase into glucose |
iv. Urease | d. Hydrolysis of cane sugar |
v. Zymase | e. Hydrolysis of proteins of peptides |
Answer:
All the given enzymes have their specific roles in biochemical cycles in the human body. The correct roles of these enzymes are-
Question:60
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): D(+) – Glucose is dextrorotatory in nature.
Reason (R): ‘D’ represents its dextrorotatory nature.
Answer:
The answer is the option (iii) The correct reason is that the nature of glucose is dextrorotatory due to the presence of -OH group og asymmetric carbon attached towards the right side.
Question:61
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:
(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): Vitamin D can be stored in our body.
Reason (R): Vitamin D is fat soluble vitamin.
Answer:
The answer is the option (i) Vitamin D being fat soluble is the key reason for its storage in the body.
Question:62
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:
(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A):-glycosidic linkage is present in maltose.
Reason (R): Maltose is composed of two glucose units in which C-1 of one glucose unit is linked to C-4 of another glucose unit.
Answer:
The answer is the option (iv) The linkage present in maltose is -glycosidic in place of -glycosidic linkage
Maltose
Question:63
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:
(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): All naturally occurring -amino acids except glycine are optically active.
Reason (R): Most naturally occurring amino acids have L-configuration.
Answer:
The answer is the option (v) This exception is due to the presence of at least one chiral carbon in all -amino acids except glycine
Question:64
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): Deoxyribose, is not a carbohydrate.
Reason (R): Carbohydrates are hydrates of carbon so compounds which follow formula are carbohydrates.
Answer:
The answer is the option (ii) assertion is wrong as Deoxyribose is categorised under carbohydrates and is present as the pentose sugar in DNA. The reasoning is incorrect as carbohydrates are the substances that results into polyhydroxy aldehyde or polyhydroxy ketone and they are also optically active compounds.
Question:65
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): Glycine must be taken through diet.
Reason (R): It is an essential amino acid.
Answer:
The answer is the option (ii) Glycine being naturally synthesised in the body indicates assertion is incorrect as well as due to this property it is a non-essential amino acid.
Question:66
In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:(i) Assertion and reason both are correct statements and reason explains the
assertion.
(ii) Both assertion and reason are wrong statements.
(iii) Assertion is correct statement and reason is wrong statement.
(iv) Assertion is wrong statement and reason is correct statement.
(v) Assertion and reason both are correct statements but reason does not
explain assertion.
Assertion (A): In presence of enzyme, substrate molecule can be attacked by the reagent effectively.
Reason (R): Active sites of enzymes hold the substrate molecule in a suitable position.
Answer:
The answer is the option (i) The presence of enzyme makes the process much effective as it hold onto the substrate while it is attacked by the reagent.
Question:67
Some of the short comings of the open chain structure of glucose are mentioned below, these are the facts unexplained by the open chain structure –
(i)Even after the presence of (-CHO) an aldehydic group, it is unable to react some of the characteristic reactions of aldehydes such as,
(a) Non-reactive with ammonia.
(b) No addition product formation when added in sodium bisulphite .
(c) The group indicator tests like Schiff’s test and 2, 4-DNP test are not valid
(ii) Due to the absence of -CHO groups in glucose pentaacetate, it does not react with hydroxylamine but the reaction with hydroxylamine is feasible for glucose.
(iii) The isomerism shown by D (+) – Glucose is, -D-glucose and -D-glucose. Both forms are crystalline and differ in melting points and optical rotations.
(v) Its reaction with methanol in the presence of dry hydrogen chloride gas, results into two isomers namely methyl -D-glucoside (m.p. = 438 K or ) and methyl -D-glucoside (m.p. = 380 K or ).
All the above points clarify that glucose does not have an open chain structure.
Question:68
On the basis of which evidences D-glucose was assigned the following structure?
Answer:
1. Molecular formula : Molecular formula of glucose is has been found to be
2. Straight chain sructure:
(i) When aqueous solution of glucose is treated with sodium amalgam (Na/Hg) or sodium borohydride, it is reduced to sorbitol (or glucocitol) a hexahydric alcohol.
(ii) Prolonged heating with hydriodic acid and red phosphorous at C gives a mixture of n-hexane and 2-iodohexane.
The formation of n-hexane suggests that all the six carbon atoms in glucose are arranged in a straight chain structure of glucose.
3. Presence of five hydroxyl (-OH) groups: The formation of pentaacetate after acetylation with acetic anhydride indicated the presence of 5 -OH groups. As glucose is a stable compound the 5-OH groups are supposed to be present on different carbon atoms.
4. Presence of one primary alcoholic group: The oxidation reaction of glucose and gluconic acid with conc. Nitric acid yields the same dicarboxylic acid, saccharic acid or glucaric acid.
5. Presence of an aldehyde (-CHO) group: A tehrection of glucose with hydroxylamine is feasible it indicated the presence of carbonyl (CHOH)4 (>C = O) groups.
The above-mentioned observations, the open chain structure of glucose can be described as:
Question:69
T he storage molecules of carbohydrates present in both plants and animals are given below –
(i) The major molecules in plants are starch, cellulose, sucrose, etc.
(ii) Presence of glycogen as known as animal starch in liver, brain, muscle of animals
(iii) Wood and clothe fibres contain cellulose.
Question:70
Primary structure: Every protein contains one or more polypeptide chains. These chains are made up of a-amino acids linked in a specific sequence. This specificity of sequence attachment is called primary structure.
The successive hydrolysis in the presence of mineral acids leads to the determination of the primary structure of proteins. The reaction results in products with decreasing molecular mass in each step, as shown below:
Proteins → Proteoses → Peptones → Polypeptides →Simple Peptides → -Amino acids
Secondary structure: The folding and arrangement of polypeptide chains result in secondary structures. It also provides a specific shape to the protein molecule. There are two types of structures that arise from this folding -
-Helix structure: this structure is a very common folding way of polypeptide chains, in this, the h-bonds are twisted in a right-handed manner, with additional -NH group bonded with -C = O group at adjacent turns. Thus, the structure is commonly known as 3.613 helix. The pitch of helix contains 3.16 amino acids. Hydrogen bonds are the backbone of this structure present in between one amide group and a carbonyl group.
-pleated sheet structure: The arrangement of polypeptide chains in in a zigzag manner adjacent to each other and fixed at a common distance. The intermolecular H-bonds hold the chains together, and numerous chains combine to make a sheet. A 3-D arrangement of these sheet on top of each other takes place and due to its resemblance to drapery the structure is named -pleated sheet structure.
Question:71
Answer:
During the hydrolyses, the main constituents of DNA include a pentose sugar, nitrogenous bases and phosphoric acid
Attachment of base to I ‘-position of sugar results in formation of a nucleoside. The linkage of two nucleotides through phosphoric acid at 5′-position of sugar makes a nucleotide. Multiple nucleotides joined at 5’-and 3’carbon atoms of the pentose sugar by phosphodiester linkage makes a chain of nucleotides.
The coiling of two chains of nucleotides and held by the H-bond formation between bases makes DNA.
Main subtopics covered in NCERT exemplar class 12 Chemistry chapter 14 Biomolecules solutions
NCERT exemplar Class 12 Chemistry chapter 14 solutions will help in learning the biomolecules thoroughly. As questions from this chapter are also important for JEE Main, NEET, and other exams.
Class 12 Chemistry NCERT exemplar solutions chapter 14 covers some vital topics like carbohydrates, classification of carbohydrates, oligosaccharides, and others.
NCERT exemplar solutions for Class 12 Chemistry chapter 14 helps to understand the survival of living cells.
Class 12 Chemistry NCERT exemplar solutions chapter 14 has detailed that Nutrients/biomolecules, classification of said nutrients/biomolecules, the importance of said nutrients/biomolecules, enzymes, acids, hormones are important topics which students should pay extra attention to.
NCERT exemplar Class 12 Chemistry solutions chapter 14 will look at different types of Biomolecules containing the elements carbon (C), hydrogen (H), and oxygen (O), known as Carbohydrates. It will also cover the molecules made of amino acids and acting as a biological catalyst- proteins, the molecules consisting of oils, fats, and steroid hormones- lipids, the types of nucleic acid- DNA and RNA to store cell control information, and more.
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Chapter 14 | Biomolecules |
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Chapter 16 |
Must read NCERT Solution subject wise
Read more NCERT Notes subject wise
Also Check NCERT Books and NCERT Syllabus here:
Those students who are preparing to take up engineering, biochemistry, biological science in higher education should pay attention to this chapter
The entire chapter talks about the biomolecules like proteins, carbohydrates, nucleic acids, vitamins etc.
Those students who want to score well in their exam should take help from these Class 12 Chemistry NCERT exemplar solutions chapter 14 to solve practice questions.
The questions in NCERT exemplar solutions for Class 12 Chemistry chapter 14 are prepared keeping in mind the CBSE pattern and the topics that are covered in the chapter.
Hello aspirant,
The purpose of graphic design extends beyond the brand's look. Nevertheless, by conveying what the brand stands for, it significantly aids in the development of a sense of understanding between a company and its audience. The future in the field of graphic designing is very promising.
There are various courses available for graphic designing. To know more information about these courses and much more details, you can visit our website by clicking on the link given below.
https://www.careers360.com/courses/graphic-designing-course
Thank you
Hope this information helps you.
hello,
Yes you can appear for the compartment paper again since CBSE gives three chances to a candidate to clear his/her exams so you still have two more attempts. However, you can appear for your improvement paper for all subjects but you cannot appear for the ones in which you have failed.
I hope this was helpful!
Good Luck
Hello dear,
If you was not able to clear 1st compartment and now you giving second compartment so YES, you can go for your improvement exam next year but if a student receives an improvement, they are given the opportunity to retake the boards as a private candidate the following year, but there are some requirements. First, the student must pass all of their subjects; if they received a compartment in any subject, they must then pass the compartment exam before being eligible for the improvement.
As you can registered yourself as private candidate for giving your improvement exam of 12 standard CBSE(Central Board of Secondary Education).For that you have to wait for a whole year which is bit difficult for you.
Positive side of waiting for whole year is you have a whole year to preparing yourself for your examination. You have no distraction or something which may causes your failure in the exams. In whole year you have to stay focused on your 12 standard examination for doing well in it. By this you get a highest marks as a comparison of others.
Believe in Yourself! You can make anything happen
All the very best.
Hello Student,
I appreciate your Interest in education. See the improvement is not restricted to one subject or multiple subjects and we cannot say if improvement in one subject in one year leads to improvement in more subjects in coming year.
You just need to have a revision of all subjects what you have completed in the school. have a revision and practice of subjects and concepts helps you better.
All the best.
Hi,
You just need to give the exams for the concerned two subjects in which you have got RT. There is no need to give exam for all of your subjects, you can just fill the form for the two subjects only.
Database professionals use software to store and organise data such as financial information, and customer shipping records. Individuals who opt for a career as data administrators ensure that data is available for users and secured from unauthorised sales. DB administrators may work in various types of industries. It may involve computer systems design, service firms, insurance companies, banks and hospitals.
The field of biomedical engineering opens up a universe of expert chances. An Individual in the biomedical engineering career path work in the field of engineering as well as medicine, in order to find out solutions to common problems of the two fields. The biomedical engineering job opportunities are to collaborate with doctors and researchers to develop medical systems, equipment, or devices that can solve clinical problems. Here we will be discussing jobs after biomedical engineering, how to get a job in biomedical engineering, biomedical engineering scope, and salary.
A career as ethical hacker involves various challenges and provides lucrative opportunities in the digital era where every giant business and startup owns its cyberspace on the world wide web. Individuals in the ethical hacker career path try to find the vulnerabilities in the cyber system to get its authority. If he or she succeeds in it then he or she gets its illegal authority. Individuals in the ethical hacker career path then steal information or delete the file that could affect the business, functioning, or services of the organization.
GIS officer work on various GIS software to conduct a study and gather spatial and non-spatial information. GIS experts update the GIS data and maintain it. The databases include aerial or satellite imagery, latitudinal and longitudinal coordinates, and manually digitized images of maps. In a career as GIS expert, one is responsible for creating online and mobile maps.
The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.
Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.
Individuals who opt for a career as geothermal engineers are the professionals involved in the processing of geothermal energy. The responsibilities of geothermal engineers may vary depending on the workplace location. Those who work in fields design facilities to process and distribute geothermal energy. They oversee the functioning of machinery used in the field.
If you are intrigued by the programming world and are interested in developing communications networks then a career as database architect may be a good option for you. Data architect roles and responsibilities include building design models for data communication networks. Wide Area Networks (WANs), local area networks (LANs), and intranets are included in the database networks. It is expected that database architects will have in-depth knowledge of a company's business to develop a network to fulfil the requirements of the organisation. Stay tuned as we look at the larger picture and give you more information on what is db architecture, why you should pursue database architecture, what to expect from such a degree and what your job opportunities will be after graduation. Here, we will be discussing how to become a data architect. Students can visit NIT Trichy, IIT Kharagpur, JMI New Delhi.
Individuals who opt for a career as a remote sensing technician possess unique personalities. Remote sensing analysts seem to be rational human beings, they are strong, independent, persistent, sincere, realistic and resourceful. Some of them are analytical as well, which means they are intelligent, introspective and inquisitive.
Remote sensing scientists use remote sensing technology to support scientists in fields such as community planning, flight planning or the management of natural resources. Analysing data collected from aircraft, satellites or ground-based platforms using statistical analysis software, image analysis software or Geographic Information Systems (GIS) is a significant part of their work. Do you want to learn how to become remote sensing technician? There's no need to be concerned; we've devised a simple remote sensing technician career path for you. Scroll through the pages and read.
Budget analysis, in a nutshell, entails thoroughly analyzing the details of a financial budget. The budget analysis aims to better understand and manage revenue. Budget analysts assist in the achievement of financial targets, the preservation of profitability, and the pursuit of long-term growth for a business. Budget analysts generally have a bachelor's degree in accounting, finance, economics, or a closely related field. Knowledge of Financial Management is of prime importance in this career.
The invention of the database has given fresh breath to the people involved in the data analytics career path. Analysis refers to splitting up a whole into its individual components for individual analysis. Data analysis is a method through which raw data are processed and transformed into information that would be beneficial for user strategic thinking.
Data are collected and examined to respond to questions, evaluate hypotheses or contradict theories. It is a tool for analyzing, transforming, modeling, and arranging data with useful knowledge, to assist in decision-making and methods, encompassing various strategies, and is used in different fields of business, research, and social science.
An underwriter is a person who assesses and evaluates the risk of insurance in his or her field like mortgage, loan, health policy, investment, and so on and so forth. The underwriter career path does involve risks as analysing the risks means finding out if there is a way for the insurance underwriter jobs to recover the money from its clients. If the risk turns out to be too much for the company then in the future it is an underwriter who will be held accountable for it. Therefore, one must carry out his or her job with a lot of attention and diligence.
A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.
Individuals in the operations manager jobs are responsible for ensuring the efficiency of each department to acquire its optimal goal. They plan the use of resources and distribution of materials. The operations manager's job description includes managing budgets, negotiating contracts, and performing administrative tasks.
Individuals who opt for a career as a stock analyst examine the company's investments makes decisions and keep track of financial securities. The nature of such investments will differ from one business to the next. Individuals in the stock analyst career use data mining to forecast a company's profits and revenues, advise clients on whether to buy or sell, participate in seminars, and discussing financial matters with executives and evaluate annual reports.
A Researcher is a professional who is responsible for collecting data and information by reviewing the literature and conducting experiments and surveys. He or she uses various methodological processes to provide accurate data and information that is utilised by academicians and other industry professionals. Here, we will discuss what is a researcher, the researcher's salary, types of researchers.
Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues.
A career as Transportation Planner requires technical application of science and technology in engineering, particularly the concepts, equipment and technologies involved in the production of products and services. In fields like land use, infrastructure review, ecological standards and street design, he or she considers issues of health, environment and performance. A Transportation Planner assigns resources for implementing and designing programmes. He or she is responsible for assessing needs, preparing plans and forecasts and compliance with regulations.
Individuals who opt for a career as an environmental engineer are construction professionals who utilise the skills and knowledge of biology, soil science, chemistry and the concept of engineering to design and develop projects that serve as solutions to various environmental problems.
A Safety Manager is a professional responsible for employee’s safety at work. He or she plans, implements and oversees the company’s employee safety. A Safety Manager ensures compliance and adherence to Occupational Health and Safety (OHS) guidelines.
A Conservation Architect is a professional responsible for conserving and restoring buildings or monuments having a historic value. He or she applies techniques to document and stabilise the object’s state without any further damage. A Conservation Architect restores the monuments and heritage buildings to bring them back to their original state.
A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software.
Highway Engineer Job Description: A Highway Engineer is a civil engineer who specialises in planning and building thousands of miles of roads that support connectivity and allow transportation across the country. He or she ensures that traffic management schemes are effectively planned concerning economic sustainability and successful implementation.
Are you searching for a Field Surveyor Job Description? A Field Surveyor is a professional responsible for conducting field surveys for various places or geographical conditions. He or she collects the required data and information as per the instructions given by senior officials.
Orthotists and Prosthetists are professionals who provide aid to patients with disabilities. They fix them to artificial limbs (prosthetics) and help them to regain stability. There are times when people lose their limbs in an accident. In some other occasions, they are born without a limb or orthopaedic impairment. Orthotists and prosthetists play a crucial role in their lives with fixing them to assistive devices and provide mobility.
A career in pathology in India is filled with several responsibilities as it is a medical branch and affects human lives. The demand for pathologists has been increasing over the past few years as people are getting more aware of different diseases. Not only that, but an increase in population and lifestyle changes have also contributed to the increase in a pathologist’s demand. The pathology careers provide an extremely huge number of opportunities and if you want to be a part of the medical field you can consider being a pathologist. If you want to know more about a career in pathology in India then continue reading this article.
Gynaecology can be defined as the study of the female body. The job outlook for gynaecology is excellent since there is evergreen demand for one because of their responsibility of dealing with not only women’s health but also fertility and pregnancy issues. Although most women prefer to have a women obstetrician gynaecologist as their doctor, men also explore a career as a gynaecologist and there are ample amounts of male doctors in the field who are gynaecologists and aid women during delivery and childbirth.
The audiologist career involves audiology professionals who are responsible to treat hearing loss and proactively preventing the relevant damage. Individuals who opt for a career as an audiologist use various testing strategies with the aim to determine if someone has a normal sensitivity to sounds or not. After the identification of hearing loss, a hearing doctor is required to determine which sections of the hearing are affected, to what extent they are affected, and where the wound causing the hearing loss is found. As soon as the hearing loss is identified, the patients are provided with recommendations for interventions and rehabilitation such as hearing aids, cochlear implants, and appropriate medical referrals. While audiology is a branch of science that studies and researches hearing, balance, and related disorders.
An oncologist is a specialised doctor responsible for providing medical care to patients diagnosed with cancer. He or she uses several therapies to control the cancer and its effect on the human body such as chemotherapy, immunotherapy, radiation therapy and biopsy. An oncologist designs a treatment plan based on a pathology report after diagnosing the type of cancer and where it is spreading inside the body.
Are you searching for an ‘Anatomist job description’? An Anatomist is a research professional who applies the laws of biological science to determine the ability of bodies of various living organisms including animals and humans to regenerate the damaged or destroyed organs. If you want to know what does an anatomist do, then read the entire article, where we will answer all your questions.
For an individual who opts for a career as an actor, the primary responsibility is to completely speak to the character he or she is playing and to persuade the crowd that the character is genuine by connecting with them and bringing them into the story. This applies to significant roles and littler parts, as all roles join to make an effective creation. Here in this article, we will discuss how to become an actor in India, actor exams, actor salary in India, and actor jobs.
Individuals who opt for a career as acrobats create and direct original routines for themselves, in addition to developing interpretations of existing routines. The work of circus acrobats can be seen in a variety of performance settings, including circus, reality shows, sports events like the Olympics, movies and commercials. Individuals who opt for a career as acrobats must be prepared to face rejections and intermittent periods of work. The creativity of acrobats may extend to other aspects of the performance. For example, acrobats in the circus may work with gym trainers, celebrities or collaborate with other professionals to enhance such performance elements as costume and or maybe at the teaching end of the career.
Career as a video game designer is filled with excitement as well as responsibilities. A video game designer is someone who is involved in the process of creating a game from day one. He or she is responsible for fulfilling duties like designing the character of the game, the several levels involved, plot, art and similar other elements. Individuals who opt for a career as a video game designer may also write the codes for the game using different programming languages.
Depending on the video game designer job description and experience they may also have to lead a team and do the early testing of the game in order to suggest changes and find loopholes.
Radio Jockey is an exciting, promising career and a great challenge for music lovers. If you are really interested in a career as radio jockey, then it is very important for an RJ to have an automatic, fun, and friendly personality. If you want to get a job done in this field, a strong command of the language and a good voice are always good things. Apart from this, in order to be a good radio jockey, you will also listen to good radio jockeys so that you can understand their style and later make your own by practicing.
A career as radio jockey has a lot to offer to deserving candidates. If you want to know more about a career as radio jockey, and how to become a radio jockey then continue reading the article.
The word “choreography" actually comes from Greek words that mean “dance writing." Individuals who opt for a career as a choreographer create and direct original dances, in addition to developing interpretations of existing dances. A Choreographer dances and utilises his or her creativity in other aspects of dance performance. For example, he or she may work with the music director to select music or collaborate with other famous choreographers to enhance such performance elements as lighting, costume and set design.
A career as social media manager involves implementing the company’s or brand’s marketing plan across all social media channels. Social media managers help in building or improving a brand’s or a company’s website traffic, build brand awareness, create and implement marketing and brand strategy. Social media managers are key to important social communication as well.
Photography is considered both a science and an art, an artistic means of expression in which the camera replaces the pen. In a career as a photographer, an individual is hired to capture the moments of public and private events, such as press conferences or weddings, or may also work inside a studio, where people go to get their picture clicked. Photography is divided into many streams each generating numerous career opportunities in photography. With the boom in advertising, media, and the fashion industry, photography has emerged as a lucrative and thrilling career option for many Indian youths.
An individual who is pursuing a career as a producer is responsible for managing the business aspects of production. They are involved in each aspect of production from its inception to deception. Famous movie producers review the script, recommend changes and visualise the story.
They are responsible for overseeing the finance involved in the project and distributing the film for broadcasting on various platforms. A career as a producer is quite fulfilling as well as exhaustive in terms of playing different roles in order for a production to be successful. Famous movie producers are responsible for hiring creative and technical personnel on contract basis.
In a career as a copywriter, one has to consult with the client and understand the brief well. A career as a copywriter has a lot to offer to deserving candidates. Several new mediums of advertising are opening therefore making it a lucrative career choice. Students can pursue various copywriter courses such as Journalism, Advertising, Marketing Management. Here, we have discussed how to become a freelance copywriter, copywriter career path, how to become a copywriter in India, and copywriting career outlook.
In a career as a vlogger, one generally works for himself or herself. However, once an individual has gained viewership there are several brands and companies that approach them for paid collaboration. It is one of those fields where an individual can earn well while following his or her passion.
Ever since internet costs got reduced the viewership for these types of content has increased on a large scale. Therefore, a career as a vlogger has a lot to offer. If you want to know more about the Vlogger eligibility, roles and responsibilities then continue reading the article.
For publishing books, newspapers, magazines and digital material, editorial and commercial strategies are set by publishers. Individuals in publishing career paths make choices about the markets their businesses will reach and the type of content that their audience will be served. Individuals in book publisher careers collaborate with editorial staff, designers, authors, and freelance contributors who develop and manage the creation of content.
Careers in journalism are filled with excitement as well as responsibilities. One cannot afford to miss out on the details. As it is the small details that provide insights into a story. Depending on those insights a journalist goes about writing a news article. A journalism career can be stressful at times but if you are someone who is passionate about it then it is the right choice for you. If you want to know more about the media field and journalist career then continue reading this article.
Individuals in the editor career path is an unsung hero of the news industry who polishes the language of the news stories provided by stringers, reporters, copywriters and content writers and also news agencies. Individuals who opt for a career as an editor make it more persuasive, concise and clear for readers. In this article, we will discuss the details of the editor's career path such as how to become an editor in India, editor salary in India and editor skills and qualities.
Individuals who opt for a career as a reporter may often be at work on national holidays and festivities. He or she pitches various story ideas and covers news stories in risky situations. Students can pursue a BMC (Bachelor of Mass Communication), B.M.M. (Bachelor of Mass Media), or MAJMC (MA in Journalism and Mass Communication) to become a reporter. While we sit at home reporters travel to locations to collect information that carries a news value.
Are you searching for a Corporate Executive job description? A Corporate Executive role comes with administrative duties. He or she provides support to the leadership of the organisation. A Corporate Executive fulfils the business purpose and ensures its financial stability. In this article, we are going to discuss how to become corporate executive.
A multimedia specialist is a media professional who creates, audio, videos, graphic image files, computer animations for multimedia applications. He or she is responsible for planning, producing, and maintaining websites and applications.
Welding Engineer Job Description: A Welding Engineer work involves managing welding projects and supervising welding teams. He or she is responsible for reviewing welding procedures, processes and documentation. A career as Welding Engineer involves conducting failure analyses and causes on welding issues.
A quality controller plays a crucial role in an organisation. He or she is responsible for performing quality checks on manufactured products. He or she identifies the defects in a product and rejects the product.
A quality controller records detailed information about products with defects and sends it to the supervisor or plant manager to take necessary actions to improve the production process.
A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.
A QA Lead is in charge of the QA Team. The role of QA Lead comes with the responsibility of assessing services and products in order to determine that he or she meets the quality standards. He or she develops, implements and manages test plans.
A Structural Engineer designs buildings, bridges, and other related structures. He or she analyzes the structures and makes sure the structures are strong enough to be used by the people. A career as a Structural Engineer requires working in the construction process. It comes under the civil engineering discipline. A Structure Engineer creates structural models with the help of computer-aided design software.
The Process Development Engineers design, implement, manufacture, mine, and other production systems using technical knowledge and expertise in the industry. They use computer modeling software to test technologies and machinery. An individual who is opting career as Process Development Engineer is responsible for developing cost-effective and efficient processes. They also monitor the production process and ensure it functions smoothly and efficiently.
An AWS Solution Architect is someone who specializes in developing and implementing cloud computing systems. He or she has a good understanding of the various aspects of cloud computing and can confidently deploy and manage their systems. He or she troubleshoots the issues and evaluates the risk from the third party.
An Azure Administrator is a professional responsible for implementing, monitoring, and maintaining Azure Solutions. He or she manages cloud infrastructure service instances and various cloud servers as well as sets up public and private cloud systems.
Careers in computer programming primarily refer to the systematic act of writing code and moreover include wider computer science areas. The word 'programmer' or 'coder' has entered into practice with the growing number of newly self-taught tech enthusiasts. Computer programming careers involve the use of designs created by software developers and engineers and transforming them into commands that can be implemented by computers. These commands result in regular usage of social media sites, word-processing applications and browsers.
A Product Manager is a professional responsible for product planning and marketing. He or she manages the product throughout the Product Life Cycle, gathering and prioritising the product. A product manager job description includes defining the product vision and working closely with team members of other departments to deliver winning products.
Individuals in the information security manager career path involves in overseeing and controlling all aspects of computer security. The IT security manager job description includes planning and carrying out security measures to protect the business data and information from corruption, theft, unauthorised access, and deliberate attack
An Automation Test Engineer job involves executing automated test scripts. He or she identifies the project’s problems and troubleshoots them. The role involves documenting the defect using management tools. He or she works with the application team in order to resolve any issues arising during the testing process.
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