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    NCERT Solutions for Class 11 Biology Chapter 21 Neural Control and Coordination

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    NCERT Solutions for Class 11 Biology Chapter 21 Neural Control and Coordination

    Edited By Irshad Anwar | Updated on Sep 09, 2023 09:02 PM IST

    Neural Control and Coordination - NCERT Solutions | Class 11 PDF Download

    NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination: The chapter-by-chapter answers to every question in the Class 11 NCERT textbook are provided to students in NCERT Solutions for Class 11. You may have learned in earlier classes that the functions of our organs and organ systems in our body have been coordinated with the neuron system. The most recent CBSE Syllabus has been updated in NCERT Solutions.

    CBSE NCERT Solutions for Class 11 Biology Chapter 21 Neural Control and Coordination will also walk you through the fact that the supply of oxygen increases while performing physical activities. For example, when you do physical exercises, you will see the energy demand increase to maintain the increased muscular activity. You will understand in Neural Control and Coordination NCERT that this increased supply of oxygen necessitates an increase in the rate of respiration, heartbeat, and blood flow via blood vessels. When you stop physical exercise, the activities of the nerves, lungs, heart, and kidneys gradually return to their normal conditions. You will find questions based on these concepts in Class 11 Chapter 21 Biology NCERT Solutions.

    Biology Class 11: In NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination, you will get answers to the topics related to the functions of muscles, lungs, heart, blood vessels, kidneys, and other organs. You will study in Neural Control and Coordination NCERT Solutions that the neural system and the endocrine system jointly coordinate and integrate the activities of all the organs so that they function in a synchronized manner. If you are looking for an answer from any other chapter, even from any other class, then go with NCERT Solutions. You will get all the answers to NCERT easily, including Class 11 Biology Chapter 21 NCERT Solutions.

    After going through the solutions of Neural Control and Coordination NCERT, you must be able to understand all the answers of the following questions:

    NCERT Solutions For Class 11 Biology Neural Control and Coordination

    According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 18.

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    NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination: Solved Exercise

    The detailed solutions for in-text and exercise questions of Chapter 21 Biology Class 11 are provided below:

    Class 11 Biology Chapter 21 Question Answer

    Q1. Briefly describe the structure of the following:

    (a) Brain

    Answer:

    The brain is the main coordinating center of the body. It is a part of the nervous system that controls and monitors every organ of the body.

    It is well protected by cranial meninges that are made up of an outer layer called dura mater, a thin middle layer called arachnoid, and an inner layer called pia mater.

    It is divided into three regions —

    1. forebrain
    2. midbrain
    3. hindbrain

    Forebrain:

    It is the main thinking part of the brain. It consists of the cerebrum, thalamus, and hypothalamus.

    1. Cerebrum: The cerebrum is the largest part of the brain and constitutes about four-fifths of its weight. It is divided into two cerebral hemispheres by a deep longitudinal cerebral fissure. These hemispheres are joined by a tract of nerve fibre known as the corpus callosum.

    2. Thalamus: Thalamus is the main center of coordination for sensory and motor signaling. It is wrapped by the cerebrum.

    3. Hypothalamus: Hypothalamus lies at the base of the thalamus and contains a number of centers that regulate body temperature and the urge for eating and drinking. Some regions of the cerebrum, along with hypothalamus, are involved in the regulation of sexual behavior and expression of emotional reactions such as excitement, pleasure, fear, etc.

    Midbrain:
    It is located between the thalamus region of the forebrain and pons region of hindbrain. The dorsal surface of midbrain consists of superior and inferior corpora bigemina and four round lobes called corpora quadrigemina.

    Hindbrain:
    It consists of three regions - pons, cerebellum, and medulla oblongata.

    • Pons is a band of nerve fibre that lies between medulla oblongata and midbrain. It connects the lateral parts of cerebellar hemisphere together.
    • The cerebellum is a large and well-developed part of hindbrain. It is located below the posterior sides of cerebral hemispheres and above the medulla oblongata. It is responsible for maintaining posture and equilibrium of the body.
    • The medulla oblongata is the posterior and simplest part of the brain. It is located beneath the cerebellum. Its lower end extends in the form of the spinal cord and leaves the skull through the foramen magnum.

    Class 11 Ch 21 Bio NCERT Solutions

    Q1. Briefly describe the structure of the following:

    (b) Eye

    Answer:

    Eye: We know that eyes are in spherical structures that consist of three layers.

    1. The outer layer is composed of sclera and cornea.

    • The sclera is an opaque tissue that is usually known as white of the eye. It is composed of dense connective tissue.
    • The cornea is a transparent anterior portion of the eye that lacks blood vessels and is nourished by lymph from the nearby area. It is slightly bulged forward and helps in focusing light rays with the help of the lens.

    2. The middle layer of eye is vascular in nature and contains choroid, ciliary body, and iris.

    • Choroid lies next to the sclera and contains numerous blood vessels that provide nutrients and oxygen to the retina and other tissues.
    • Ciliary body: The choroid layer is thin over the posterior region and gets thickened in the anterior portion to form ciliary body. It contains blood vessels, ciliary muscles, and ciliary processes.
    • Iris: At the junction of sclera and cornea, the ciliary body continues forward to form a thin colored partition called iris. It is the visible coloured portion of eye. The eye contains a transparent, biconvex, and elastic structure just behind the iris. It is known as a lens. The lens is held in position by suspensory ligaments attached to the ciliary body. The lens divides the eyeball into two chambers — an anterior aqueous and posterior vitreous chamber.

    3. The innermost nervous coat of eye contains retina. The retina is the innermost layer. It contains three layers of cells — inner ganglion cells, middle bipolar cells, and outermost photoreceptor cells. The receptor cells present in the retina are of two types — rod cells and cone cells.

    • Rod cells —The rods contain the rhodopsin pigment (visual purple) that is highly sensitive to dim light. It is responsible for twilight vision.
    • Cone cells —The cones contain the iodopsin pigment (visual violet) and are highly sensitive to high-intensity light. They are responsible for daylight and colour visions. The innermost ganglionic cells give rise to optic nerve fibre that forms optic nerve in each eye and is connected with the brain.

    Class 11 Chapter 21 Biology NCERT Solutions

    Q1. Briefly describe the structure of the following:

    (c) Ear

    Answer:

    Ear: Ear is the sense organ for hearing and equilibrium. It consists of three portions external ear, middle ear, and internal ear.

    1. External ear: It consists of the pinna, external auditory meatus, and a tympanic membrane. Pinna is a sensitive structure that collects and directs the vibrations into the ear to produce sound. External auditory meatus is a tubular passage supported by cartilage in the external ear. The tympanic membrane is a thin membrane that lies close to the auditory canal. It separates the middle ear from the external ear.

    2. Middle ear: It is an air-filled tympanic cavity that is connected with pharynx through the eustachian tube. The eustachian tube helps to equalize air pressure in both sides of the tympanic membrane. The middle ear contains a flexible chain of three middle bones called ear ossicles. The three ear ossicles are malleus, incus, and stapes that are attached to each other.

    3. Internal ear: It is also known as the labyrinth. The labyrinth is divided into the bony labyrinth and a membranous labyrinth. The bony labyrinth is filled with perilymph while a membranous labyrinth is filled with endolymph.

    The membranous labyrinth is divided into 2 parts.

    • Vestibular apparatus: It is a central sac-like part that is divided into utriculus and sacculus. A special group of sensory cells called macula are present in sacculus and utriculus. Vestibular apparatus also contains three semi-circular canals. The lower end of each semi-circular canal contains a projecting ridge called crista ampularis. Each ampulla has a group of sensory cells called crista. Crista and macula are responsible for maintaining the balance of body and posture.
    • Cochlea: Cochlea is a long and coiled outgrowth of the sacculus. It is the main hearing organ. Cochlea consists of three membranes. The organ of Corti, a hearing organ, is located on the basilar membrane that has hair cells.

    Neural Control and Coordination NCERT Solutions

    Q2. Compare the following:

    (a) Central neural system (CNS) and Peripheral neural system (PNS)

    Answer:

    Central Neural System (CNS) Peripheral Neural System (PNS)
    1. CNS is made of the brain and the spinal cord. 1. PNS consists of cranial nerves and spinal nerves.
    2. Brain is protected by the skull and the spinal cord by the vertebral column. 2. There are no protective structures for PNS.
    3. CNS does not have any subdivisions. 3. PNS is divided into somatic nervous system and autonomic nervous system.
    4. CNS processes the information and controls the response to impulses. 4. Nerves of PNS carry impulses to the CNS and responses from the CNS to different organs of the body.
    5. Group of neurons in CNS is called nuclei. 5. Group of neurons in PNS is called ganglia.

    Q2. Compare the following:

    (b) Resting potential and action potential

    Answer:

    Resting Potential Action Potential
    1. It is the potential difference (difference in electric charge) across the membrane when the neuron is at the resting phase. 1. It is the potential difference (difference in the electric charge) across the membrane when the neuron is stimulated or excited.
    2. The outer side of the neuron is positively charged and the interior of the neuron is negatively charged. 2. The outer side of the neuron is negatively charged and the interior of the neuron is positively charged.
    3. The plasma membrane of the neuron is more permeable to K + ions. 3. The plasma membrane of the neuron is more permeable to Na + ions.
    4. The sodium-potassium-ATPase pump is active and sends Na + ions outside the neuron to maintain the resting potential. 4. The sodium-potassium-ATPase pump functions in a reverse manner and sends Na + ions into the neuron.

    Q2. Compare the following:

    (c) Choroid and retina

    Answer:

    Choroid Retina
    1. It is the middle coat of the eye ball. 1. It is the inner coat of the eye ball.
    2. It does not have photoreceptor cells. 2. It has two kinds of photoreceptor cells-rods and cones.
    3. It is the vascular layer of the eyeball. 3. It is the neurosensory layer of the eyeball.
    4. It nourishes the retina and prevents reflection of light in the eye. 4. It imparts vision.

    NCERT Solutions for Class 11 Biology Chapter 21

    Q3. Explain the following processes:

    (a) Polarisation of the membrane of a nerve fibre

    Answer:

    Polarisation of the membrane of a nerve fibre:

    • When the nerve fibre is at the resting phase, it is said to be in the polarised state.
    • In a polarised state, the membrane of the nerve fibre experiences resting potential.
    • The following steps take place during the process of polarisation of the membrane of a nerve fibre:
      • When a depolarised region of a nerve fibre starts becoming polarised initially, there are more K + ions outside the nerve fibre and the axon membrane contains large amount of Na + ions.
      • As the region of the membrane starts attaining the polarised state, the membrane becomes more permeable to K + ions and impermeable to Na + ions and negatively charged proteins.
      • 3 Na + ions are sent outside the axon and 2 K + ions are sent into the axon by a sodium-potassium pump by active transport.
      • The inner side of the membrane becomes electronegative (negatively charged) and the outer side becomes electropositive (positively charged) because of the movement of sodium and potassium ions. This makes the nerve fibre polarised.

    Q3. Explain the following processes:

    (b) Depolarisation of the membrane of a nerve fibre

    Answer:

    • When the nerve fibre is stimulated, it is said to be in the depolarised state.
    • In a depolarised state, the membrane of the nerve fibre experiences an action potential.
    • The following steps take place during the process of depolarisation of the membrane of a nerve fibre:
      • In a polarised state, the axon has more concentration of K + ions and outside the axon, the concentration of Na + ions is more.
      • When the nerve fibre gets excited by the stimulus, the permeability of the membrane for Na + ions and K + ions is reversed.
      • The membrane becomes highly permeable for Na + ions.
      • There is a rapid influx of Na + ions into the axon.
      • This make the inner side of the membrane positively charged and the outside of the membrane becomes negatively charged.
      • This results in depolarisation of the membrane of the nerve fibre and its experiences an action potential.

    Chapter 21 Biology Class 11 Question Answer

    Q3. Explain the following processes:

    (c) Conduction of a nerve impulse along a nerve fibre

    Answer:

    • A nerve impulse is conducted across the length of a nerve fibre in an organised manner.
    • On the nerve fibre during the conduction of an impulse, a region is always depolarised and a region next to it will be polarised. To send the impulse forward, the depolarised region repolarises and the polarised region depolarises. This is repeated across the length of the nerve fibre which helps in the conduction of impulse.
    • It occurs in following steps:
      • At a depolarised region, consider site A, there will be positive charge on the inner surface of the membrane and negative charge on the outer surface of the membrane.
      • The region next to it which is polarised, consider site B, there will B positive charge on the outer surface of the membrane and negative charge on the inner surface of the membrane.
      • Hence, at site A, the current will flow on the inner surface of the membrane from A to B, and at site B, the current will flow on the outer surface from B to A. This will complete the circuit of the current flow.
      • This will help site B to depolarise, so that the impulse is conducted to site B.
      • As soon as the impulse is conducted to site B, site A will get repolarised.
      • When site B will be in the depolarised state, the region next to it, consider site C, will be polarised.

    Q3. Explain the following processes:

    (d) Transmission of a nerve impulse across a chemical synapse

    Answer:

    • A synapse is formed by the membranes of the pre-synaptic neuron and the post-synaptic neuron.
    • A synapse may or may not be separated by a gap which is called the synaptic cleft.
    • At a chemical synapse, the pre-synaptic and post-synaptic neurons are separated by the synaptic cleft.
    • When an impulse arrives at the axon terminal, the calcium ions present in the synaptic cleft enter the synaptic knobs present at the axon terminals of the pre-synaptic neuron.
    • The synaptic vesicles in the synaptic knobs of the pre-synaptic neuron move towards the plasma membrane and fuse with it.
    • The vesicles release the neurotransmitter acetylcholine in the synaptic cleft. (Empty synaptic vesicles return to the cytoplasm of the pre-synaptic neuron where they are refilled.)
    • The molecules of the acetylcholine bind to the protein receptors present on the plasma membrane of the post-synaptic neurons.
    • This binding opens the channels and sodium ions enter the post-synaptic neuron, while potassium ions leave the post-synaptic membrane.
    • This generates an action potential in the membrane of the post-synaptic neuron, and hence, the impulse is transmitted to the post-synaptic neuron.

    Class 11 Biology Chapter 21 NCERT Solutions

    Q4. Draw labelled diagrams of the following:

    (a) Neuron

    Answer:

    Neuron-

    1650630452536


    4. Draw labelled diagrams of the following:

    (b) Brain

    Answer:

    Brain-

    1650630480440

    Class 11 Ch 21 Bio NCERT Solutions

    Q5. Write short notes on the following:

    (a) Neural coordination

    Answer:

    • Coordination is a characteristic feature of living organisms. It is the process through which two or more organs interact and complement the functions of one another.
    • Coordination is achieved by two ways in humans and other higher order animals—neural coordination and chemical coordination.
    • Neural coordination is carried out by highly specialised cells called neurons.
    • The neural system is a network of point-to-point connections between the neurons and the organs and it operates through nerve impulses.
    • Neural coordination is always between the stimulus and the response—receptors and effectors.
    • All body functions are carried out and controlled by neural coordination.
    • The stimulus is received from organs such as the skin and a response is generated which is sent to the muscles or glands.
    • The previous stimulus is always stored in memory by the neural system.
    • Neural coordination helps in controlling and harmonising voluntary actions such as running, walking, writing and talking.
    • It helps us to remember, analyse, think and reason because the brain, a part of the neural system, is the site of intelligence.
    • All vital functions such as breathing, working of the heart and digestion are controlled by neural coordination.
    • It helps maintain homeostasis by coordinating between various metabolic activities of the body.

    Q5. Write short notes on the following:

    (b) Forebrain

    Answer:

    The forebrain consists of these three:

    Cerebrum, Thalamus and Hypothalamus .

    Cerebrum:

    • The forebrain
    • It forms the major part of the brain.
    • The cerebrum is divided into halves longitudinally by a deep cleft. Each half is called a cerebral hemisphere .
    • Both hemispheres are connected by the corpus callosum -a tract of nerve fibres.
    • The cerebral hemispheres are hollow internally.
    • The walls of the cerebrum have an outer cortex and an inner medulla.
    • The cerebral cortex contains cell bodies of neurons and hence appears greyish. It is called grey matter .
    • The grey matter is thrown into many grooves and folds called sulci and gyri, respectively.
    • A higher number of convolutions leads to greater intelligence.
    • The cerebral cortex contains motor areas, sensory areas and association areas. Association areas are neither sensory nor motor.
    • These areas are responsible for complex functions such as memory, communication and intersensory associations.
    • The cerebral medulla consists of axons of nerve fibres and appears whitish. It is called white matter .
    • The inner part of the cerebral hemispheres and a group of associated deep structures such as hippocampus and amygdala form a complex structure called the limbic lobe or limbic system .
      • Functions:
      • The cerebrum is the centre of intelligence, memory, consciousness, will power and voluntary actions.

    Thalamus:

    • It is made of grey matter.
    • It is situated superior to the midbrain.
    • Functions:
      • The thalamus relays motor and sensory impulses to the cerebrum.
      • It also regulates the manifestation of emotions and recognises heat, cold and pain.

    Hypothalamus:

    • It lies at the base of the thalamus.
    • It consists of the optic chiasma , a point where the fibres of optic nerves cross to opposite sides.
    • Behind the optic chiasma is the infundibulum . It is a greyish protuberance of the hypothalamus.
    • The infundibulum holds the pituitary gland.
    • Functions:
      • The hypothalamus contains the centres which control body temperature, blood pressure and homeostasis.
      • It contains the centres to control hunger, thirst, sleep, fatigue, emotions, anger, pleasure and penance.
      • The neurosecretory cells of the hypothalamus secrete certain hormone or releasing factors which control the activity of the pituitary hormones.
      • The hypothalamus along with the limbic system is involved in the regulation of sexual behaviour.

    Class 11 Biology Chapter 21 NCERT Solutions

    Q5. Write short notes on the following:

    (c) Midbrain

    Answer:

    The midbrain consists of cerebral peduncles and corpora quadrigemina.

    Cerebral Peduncles:

    • Cerebral peduncles are fibrous thick tracts.
    • They connect the cerebrum and the cerebellum.
    • Functions:
      • They relay the sensory and motor impulse between the forebrain and hindbrain.

    Corpora Quadrigemina:

    • On the dorsal portion of the brain, there are two pairs of solid lobes present. These lobes are called corpora quadrigemina.
    • One pair is called superior colliculi and the other pair is called inferior colliculi.
    • Functions:
      • The corpora quadrigemina controls the visual reflexes. They control the movement of the head and the eye.
      • They also control auditory reflexes. They control the movement of the head to locate and detect the source of sound.

    Q5 . Write short notes on the following:

    (d) Hindbrain

    Answer:

    The hindbrain consists the cerebellum, pons varolii, and medulla oblongata:

    Cerebellum:

    • It is located at the base of the cerebellum.
    • The outer cerebellar cortex is made of grey matter and the inner cerebellar medulla is made of white matter.
    • The white matter has fibre tracts which connect the cerebellum with the medulla oblongata and the cerebrum.
    • Functions:
      • It coordinates muscular activity and the balance of the body.
      • The impulse of performing muscular activity originates in the cerebrum.
      • It modulates the voluntary movements initiated in the cerebrum.

    Pons Varolii:

    • It is made of a thick bundle of white nerve fibres.
    • It lies above the medulla oblongata.
    • Functions:
      • It coordinates the two lobes of the cerebellum.
      • The pneumotaxic centre which controls breathing is located in the pons varolii.

    Medulla oblongata:

    • It is located at the base of the skull.
    • It is conical in shape.
    • It continues behind the brain as the spinal cord.
    • Injury to the medulla oblongata results in death.
    • Functions:
      • It acts as a pathway and conducts impulses from the spinal cord to the brain.
      • It controls the activities of the internal organs, heartbeat and breathing.

    Class 11 Biology Chapter 21 Question Answer

    Q5. Write short notes on the following:

    (e) Retina

    Answer:

    Retina is the innermost, neurosensory, thin layer of the eyeball. The external surface of the retina is in contact with the choroid and its inner surface is in contact with the vitreous humour. The retina is the site of image formation.

    • The external surface consists of four layers:

    Pigmented layer:

    • This layer is made of single layer of cells. The cells contain dark-brown pigment.
    • Layer of photoreceptor cells:
      • It contains two types of photoreceptor cells - rods and cones .

    Rods:

    • Rod cells are elongated and rod-shaped.
    • They contain a purplish-red protein pigment called rhodopsin or visual purple . Rhodopsin contains a derivative of vitamin A.
    • Rods are sensitive to dim light and provide vision in dark called twilight vision or scotopic vision .
    • Rods do not respond to colours.

    Cones:

    • Cone cells are sensitive to bright light and colours. Hence, they are responsible for photopic vision or daylight vision .
    • The pigment present in the cone cells is iodopsin.
    • There are three kinds of cone cells which respond to red, green and blue light.
    • The other colours are detected by the simultaneous stimulation of more than one kind of cone cells.
    • When all the three types of cells are stimulated simultaneously, a sensation of white light is produced.
    • Cone cells are insensitive to dim light, and hence, colour cannot be recognised in the dark.

    Blind spot:

    • The optic nerve leaves the brain and the retinal blood vessels enter the brain at a point where the photoreceptor cells are absent. It is called the blind spot .

    Macula lutea:

    • Lateral to the blind spot is a yellowish pigmented spot called macula lutea or yellow spot .
    • It lies exactly opposite to the centre of the cornea.
    • Macula lutea has a central pit called fovea .
    • Fovea lack blood vessels and rods.
    • Fovea has only cone cells, and it is the region of most distinct vision.e cells, and it is the region of most distinct vision.

    Chapter 21 Biology Class 11:

    Q5. Write short notes on the following:

    (f) Ear ossicles

    Answer:

    • Three small bones called ear ossicles are present in the tympanic cavity of the middle ear.
    • They are malleus, incus and stapes.
    • Handle of the malleus is attached to the central part of the tympanic membrane which is called umbo.
    • Other end of the malleus is attached to the incus by ligaments.
    • The incus on its other end is attached to the stapes by ligaments.
    • Other end of the stapes covers an opening called fenestra ovalis or oval window of cochlea.
    • Ear ossicles transfer vibration from the external ear to the inner ear.

    Q5. Write short notes on the following:

    (g) Cochlea

    Answer:

    • The cochlea is a bony coiled structure. It is the part of the inner ear. It arises from the saccule.
    • The cochlear cavity is divided into three chambers by the two membranes-Reisnner's membrane and basilar membrane.
    • The upper chamber is called scala vestibule, the middle chamber is scala media and the lower chamber is scala tympani.
    • Scala tympani and scala vestibule are filled with the perilymph, while scala media is filled with the endolymph.
    • The basilar membrane bears the organ of Corti.
    • The organ of Corti is connected with the nerve fibres of the auditory nerve which connects to the brain.
    • The organ of Corti is the organ of hearing.

    NCERT Neural Control and Coordination:

    Q5. Write short notes on the following:

    (h) Organ of Corti

    Answer:

    • It is the organ of hearing. It is located on the basilar membrane of the inner ear.
    • It contains hair cells which are auditory receptor cells.
    • These cells are present in rows on the internal side of the organ.
    • The apical ends of the hair cells have processes called stereo cilia.
    • The basal parts of the hair cells have synaptic contacts with the afferent nerve fibres.
    • Above the rows of hair cells is a smooth gelatinous layer called the tectorial membrane.

    Q5. Write short notes on the following:

    (i) Synapse

    Answer:

    Synapse:

    • A synapse is formed by the membranes of the pre-synaptic neuron and the post-synaptic neuron.
    • A synapse may or may not be separated by a gap which is called the synaptic cleft.
    • There are two kinds of synapses-electrical synapse and chemical synapse.

    Neural Control and Coordination NCERT PDF

    Q6. Give a brief account of:

    (a) Mechanism of synaptic transmission

    Answer:

    The mechanism of synaptic transmission at the electrical synapse:

    • In this case, the pre-synaptic and post-synaptic membranes are in proximity.
    • Impulse in the form of electric current directly flows from the pre-synaptic neuron to the post-synaptic neuron.
    • Transmission is faster than the chemical synapse.

    The mechanism of synaptic transmission at the chemical synapse:

    • the pre-synaptic and post-synaptic neurons are separated by the synaptic cleft.
    • When an impulse arrives at the axon terminal, the calcium ions present in the synaptic cleft enter the synaptic knobs present at the axon terminals of the pre-synaptic neuron.
    • The synaptic vesicles present in the synaptic knobs present in the pre-synaptic neuron move towards the plasma membrane and fuse with it.
    • The vesicles release the neurotransmitter acetylcholine in the synaptic cleft. (Empty synaptic vesicles return to the cytoplasm of the pre-synaptic neuron where they are refilled.)
    • The molecules of the acetylcholine bind to the protein receptors present on the plasma membrane of the post-synaptic neurons.
    • This binding opens the channels, and sodium ions enter the post-synaptic neuron, while potassium ions leave the post-synaptic membrane.
    • This generates an action potential in the membrane of the post-synaptic neuron, and hence, the impulse is transmitted to the post-synaptic neuron.

    Q6. Give a brief account of:

    (b) Mechanism of vision

    Answer:

    • The light rays pass through the pupil, lens, aqueous humour, vitreous humour and falls on the retina.
    • The light induces the dissociation of the photo-pigment rhodopsin into opsin and retinal.
    • The dissociation of opsin from the retinal brings changes in the structure of opsin.
    • This generates an action potential in the rods and cones of the retina.
    • The action potential is further transmitted to the ganglion cells through bipolar neurons.
    • It is finally transmitted to the visual cortex of the brain via the optic nerve.
    • The impulses are analysed at the visual cortex and the responses are sent back to form the image on the retina.

    Neural Control and Coordination Class 11 NCERT PDF:

    Q6. Give a brief account of:

    (c) Mechanism of hearing

    Answer:

    Mechanism of hearing is given below:

    • Sound waves are collected by the pinna of the external ear.
    • The waves pass through the external auditory meatus to the ear drum.
    • The ear drum begins to vibrate.
    • The vibrations through the air drum are passed on to the malleus, incus and stapes of the middle ear. Here, the frequency of vibrations increases.
    • Through the oval window, vibrations are further passed to the cochlea of the inner ear.
    • The vibrations set in the endolymph of the cochlea induce vibrations in the basilar membrane.
    • Vibrations of the basilar membrane cause sensory hair of the organ of Corti to vibrate.
    • The receptor hair cells press themselves against the tectorial membrane which convert the sound energy into the action potential or nerve impulse.
    • The nerve impulse is transmitted to the auditory cortex of the brain.
    • The impulses are analysed at the auditory cortex and the sound is recognised.

    Neural Control and Coordination NCERT

    Q7. Answer briefly:

    (a) How do you perceive the colour of an object?

    Answer:

    Cone cells present in the retina of the eye are responsible for colour vision. There are three kinds of cone cells which respond to red, green and blue light. Different cone cells get stimulated at different wavelengths of light. The other colours are detected by the simultaneous stimulation of more than one kind of cone cells. When all the three types of cells are stimulated simultaneously, a sensation of white light is produced.

    Q7. Answer briefly:

    (b) Which part of our body helps us in maintaining the body balance?

    Answer:

    Crista ampullaris present in the three semicircular canals, the macula utriculi present in the utricle and the macula sacculi present in the saccule of the inner ear help us in maintaining body balance.

    Q7. Answer briefly:

    (c) How does the eye regulate the amount of light that falls on the retina.

    Answer:

    Light enters the eye through the pupil, an aperture present in the centre of the iris. The iris has two types of muscles-circular smooth muscles and radial smooth muscles-which regulate the amount of light which falls on the retina.

    The smooth circular muscles contract in bright light which makes the pupil smaller in size; hence, lesser amount of light falls on the retina. In dim light, the pupil is widened by the contraction of radial smooth muscles so that sufficient amount of light falls on the retina.

    NCERT Neural Control and Coordination

    Q8. Explain the following:

    (a) Role of Na+ in the generation of action potential.

    Answer:

    Sodium ions diffuse from the outside to the intracellular fluid because of the electrochemical gradient. The potassium ions move out, and the membrane becomes negatively charged from outside and positively charged from inside. This sudden change in the membrane potential is called the action potential, and the membrane is said to be depolarised.

    Q8. Explain the following:

    ( b) Mechanism of generation of light-induced impulse in the retina.

    Answer:

    The photosensitive compounds (photo pigments) in the human eye are composed of opsin and retinal. Light induces dissociation of retinal and opsin which changes the structure of opsin. It generates an action potential in the bipolar neurons. These impulses/action potential are transmitted by the optic nerves to the visual cortex of the brain where the neural impulses are analysed and the erect image is recognised.

    Q8. Explain the following:

    (c) Mechanism through which a sound produces a nerve impulse in the inner ear.

    Answer:

    From the perilymph, the vibrations are transferred to the scala vestibuli of the cochlea and then to the scala media through Reissner's membrane and stimulate the sensory hair of the organ of Corti. The impulses thus received by the hair cells are carried to the brain through the auditory nerve where the sensation of hearing is felt.

    Neural Control and Coordination NCERT Solutions

    Q9. Differentiate between: (a) Myelinated and non-myelinated axons

    Answer:

    Myelinated Axons Non-myelinated Axons
    1. Myelin sheath is present. 1. Myelin sheath is absent.
    2. Nodes of Ranvier are present. 2. Nodes of Ranvier are absent.
    It is found in the grey matter of the brain, spinal cord, and autonomous nervous system. 3. It is found in the white matter of the brain, spinal cord and autonomous nervous system.
    4. The conduction of nerve impulse is node to node. 4. The conduction of nerve impulse is smooth.
    5. The speed of conduction of impulse is 50 times faster than in non-myelinated axon. 5. The speed of conduction of impulse is slow.


    Q9. Differentiate between: (b) Dendrites and axons

    Answer:

    Dendrites Axons
    1. They are short processes. 1. Axons are long processes.
    2. Dendrites carry impulses towards the cell body of the neuron. 2. Axons carry impulses away from the cell body of the neuron.
    3. Dendrites are always branched. 3. Axons may or may not be branched.
    4. Nissl's granules are present in the neuroplasm. 4. Nissl's granules are absent in the neuroplasm.

    Class 11 Biology Chapter 21 NCERT Solutions

    Q9. Differentiate between:

    (c) Rods and cone

    Answer:

    Rods Cones
    1. They are sensitive to dim light. 1. They are sensitive to bright light.
    2. Rods contain the pigment rhodopsin. 2. Cones contain the pigment iodopsin.
    3. They have no role to play in colour vision. 3. They are responsible for colour vision.
    4. Only one kind of rods exist. 4. There are three kinds of cones-red, blue and green.

    Q9. Differentiate between:

    (d) Thalamus and Hypothalamus

    Answer:

    Thalamus Hypothalamus
    1. It is made of only grey matter. 1. It is made of white and grey matter.
    2. The thalamus does not secrete any hormone. 2. The hypothalamus secretes certain hormones which control the activity of the pituitary gland.
    3. It is situated superior to the midbrain. 3. It is situated at the base of the thalamus.
    4. It contains the centres of sensations such as heat, cold and pain. 4. It contains the centres which control body temperature, blood pressure and homeostasis.


    Q9. Differentiate between:

    (e) Cerebrum and Cerebellum

    Answer:

    Cerebrum Cerebellum
    1. It is the largest part of the brain. 1. It is the second-largest part of the brain.
    2. It is part of the forebrain. 2. It is part of the hindbrain.
    3. The cerebrum is divided into two cerebral hemispheres. 3. The cerebellum is divided into three lobes-central vermis and the two lateral cerebellar hemispheres.
    4. It is the site of memory and intelligence. 4. It is the site of body equilibrium and posture.

    Chapter 21 of NCERT Solutions for Class 11 Biology

    Q10. Answer the following:

    (a) Which part of the ear determines the pitch of a sound?

    Answer:

    The cochlea determines the pitch of a sound.

    Q10. Answer the following:

    (b) Which part of the human brain is the most developed?

    Answer:

    The cerebrum is the most developed.

    Q10. Answer the following:

    (c) Which part of our central neural system acts as a master clock?

    Answer:

    The hypothalamus of the central neural system acts as a master clock.

    Chapter 21 Biology Class 11 Question Answer

    Q11. The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the
    (a) fovea
    (b) iris
    (c) blind spot
    (d) optic chaisma

    Answer:

    (c) Blind spot

    The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the blind spot. Photoreceptors are absent in this region.

    Class 11 Chapter 21 Biology NCERT Solutions

    Q12. Distinguish between:

    (a) afferent neurons and efferent neurons

    Answer:

    Afferent Neurons Efferent Neurons
    1. They conduct sensory impulses from the receptors to the central nervous system.
    1. They conduct motor impulses from the central nervous system to the effector organs such as muscles.
    2. They are present in the sense organs.
    2. They are present in the brain and the spinal cord.
    3. They are sensory neurons.
    3. They are motor neurons.

    Q12. Distinguish between:

    (b) impulse conduction in a myelinated nerve fibre and unmyelinated nerve fibre

    Answer:

    Impulse Conduction in a Myelinated Nerve Fibre Impulse Conduction in Non-myelinated Nerve Fibre
    1. Impulse travels from node to node. 1. Impulse travels along the length of the entire nerve fibre.
    2. The speed of conduction is 50 times faster than the non-myelintaed nerve fibre. 2. The speed of conduction is slower.
    3. Energy expenditure during impulse transmission is less. 3. Energy expenditure during impulse transmission is more.

    Q12. Distinguish between:

    (c) aqueous humor and vitreous humor

    Answer:

    Aqueous Humour Vitreous Humour
    1. It is present in the aqueous chamber between the lens and the cornea. 1. It is present in the vitreous chamber between the lens and the retina.
    2. It is secreted by the ciliary processes. 2. It is secreted by the retina of the eye.
    3. It is a jelly-like fluid. 3. It is a watery fluid.
    4. It supports the lens. 4. It supports the lens and retina.

    Q12. Distinguish between:

    (d) blind spot and yellow spot

    Answer:

    Blind Spot Yellow Spot
    1. It is the point on the retina at which the optic nerve leaves the eye and retinal blood vessels enter the eye. 1. It is the point on the retina which lies exactly opposite the centre of the cornea.
    2. It is void of photoreceptor cells. 2. It contains two kinds of photoreceptor cells-rods and cones.
    3. It is insensitive to light. 3. It is very much sensitive to light.
    4. It has no function with respect to vision. 4. It is the area of most distinct vision.

    Q12. Distinguish between:

    (f) cranial nerves and spinal nerves.

    Answer:

    Cranial Nerves Spinal Nerves
    1. There are 12 pairs of cranial nerves. 1. There are 31 pairs of spinal nerves.
    2. They arise from the brain and extend to the other parts of the body. 2. They arise from the spinal cord and extend to other parts of the body.
    3. They may be sensory, motor or mixed. 3. They are mixed nerves.

    NCERT Class 11 Biology Chapter 21 – Neural Control and Coordination

    Highly qualified academic professionals with vast subject knowledge developed the NCERT Solutions for Class 11 as per the latest CBSE syllabus. Plus one zoology neural control and coordination is part of the CBSE Syllabus 2022–23 and is categorized under Unit–5 Human Physiology. Overall, there are roughly 18 marks total assigned to this unit, which represents 25% of the total weight of the question paper. It is a field of science that examines how typical human tissues, organs, and bodies function physically, mechanically, and biochemically.

    If you have any problem in understanding the solutions in neural control and coordination NCERT pdf then, don't worry and go through that neural control and coordination NCERT and try to understand all the concepts of every topic and then write the answers of all these questions by your own and then compare them. You will see that your knowledge, as well as the understanding of these concepts, will increase and you will be able to explain the answers in a better way.

    Important Topics of NCERT Solutions for Class 11 Biology Chapter 21 - Neural Control and Coordination

    The important topics and sub-topics of neural control and coordination class 11 NCERT pdf are listed below:

    21.1 Neural System

    21.2 Human Neural System

    21.3 Neuron as Structural and Functional Unit of Neural System

    21.3.1 Generation and Conduction of Nerve Impulse

    21.3.2 Transmission of Impulses

    21.4 Central Neural System

    21.4.1 Forebrain

    21.4.2 Midbrain

    21.4.3 Hindbrain

    21.5 Reflex Action and Reflex Arc

    21.6 Sensory Reception and Processing

    21.6.1 Eye

    21.6.1.1 Parts of an eye

    21.6.1.2 Mechanism of Vision

    21.6.2 The Ear

    20.6.2.1 Mechanism of Hearing

    NCERT Solutions for Class 11 Biology Chapter 21 – Neural Control and Coordination

    The human neural system consists of two parts:

    1. Central neural system (CNS)
    2. Peripheral neural system.

    The CNS consists of the brain and spinal cord. The brain can be divided into three major parts:

    1. forebrain,
    2. midbrain
    3. hindbrain

    The forebrain consists of the cerebrum, thalamus, and hypothalamus. The cerebrum is longitudinally divided into two halves that are connected by the corpus callosum. A very important part of the forebrain called the hypothalamus controls body temperature, eating and drinking. NCERT Solutions for Class 11 Biology offers students solutions to all the chapters in a downloadable format.

    Highlights of NCERT Solutions for Class 11 Biology Chapter 21 – Neural Control and Coordination

    • Chapter 21 Biology Class 11 NCERT Solutions are framed in accordance with the textbook data.
    • Class 11 Ch 21 Bio NCERT Solutions Provide answers to all the questions of Class 11 Neural Control and Coordination appearing in the same order as provided in the textbook.
    • Chapter 21 Biology Class 11 NCERT PDF is the ultimate resource for all the academic requirements of students in the CBSE session.
    • Neural control and coordination Class 11 questions and answers are provided in the most efficient and effective pattern.
    • Students' conceptual knowledge can be assessed while referring to the Neural Control and Coordination PDF.
    • Neural Control and Coordination Class 11 PDF is easily available in a ready-to-download format.

    NCERT Solutions for class 11 Biology - Chapter Wise

    NCERT Solutions for Class 11 - Subject wise

    Check the NCERT Books and NCERT Syllabus here:

    Frequently Asked Question (FAQs)

    1. What are the benefits of NCERT solutions for class 11 biology chapter 21 neural control and coordination?

    The benefits of NCERT solutions of Class 11 Biology chapter 21 are listed below: 

    • NCERT is the base of your learning.  
    • You will get all the answers to neural control and coordination ncert and neural control and coordination ncert pdf will help you to score good marks in the exam.  
    • NCERT solutions for chapter 21 biology class 11 will also help you with competitive exams like NEET.  
    • solution of NCERT neural control and coordination will also boost your knowledge.  
    • NCERT solutions given in neural control and coordination class 11 ncert pdf will also help you in your 12th board exam. 
    • To score well in the examination, follow the NCERT syllabus and solve the exercise given in the NCERT Book. To practice more problems, students must refer to NCERT Exemplar.
    2. What are the important topics of NCERT solutions for class 11 biology chapter 21?

    These are the important topics of NCERT  solutions for class 11 biology chapter 21:

    • Neural System  
    • Human Neural System  
    • Neuron as Structural and Functional Unit of Neural System  
    • Generation and Conduction of Nerve Impulse  
    • Transmission of Impulses  
    • Central Neural System  
    • Reflex Action and Reflex Arc  
    • Sensory Reception and Processing  
    • Eye  
    • The Ear 
    3. What are the major parts of our brain?
    1.   forebrain,  
    2.   midbrain  
    3.   hindbrain 
    4. What are the difference between the dendrites and axon according to biology class 11 chapter 21?


    Dendrites  Axons 
     1. They are short processes.  1. Axons are long processes. 
     2. Dendrites carry impulses towards the cell body of the neuron.  2. Axons carry impulses away from the cell body of the neuron. 
     3. Dendrites are always branched.  3. Axons may or may not be branched. 
     4. Nissl's granules are present in the neuroplasm.  4. Nissl's granules are absent in the neuroplasm. 

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    A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

    Option 1)

    0.34\; J

    Option 2)

    0.16\; J

    Option 3)

    1.00\; J

    Option 4)

    0.67\; J

    A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

    Option 1)

    2.45×10−3 kg

    Option 2)

     6.45×10−3 kg

    Option 3)

     9.89×10−3 kg

    Option 4)

    12.89×10−3 kg

     

    An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

    Option 1)

    2,000 \; J - 5,000\; J

    Option 2)

    200 \, \, J - 500 \, \, J

    Option 3)

    2\times 10^{5}J-3\times 10^{5}J

    Option 4)

    20,000 \, \, J - 50,000 \, \, J

    A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

    Option 1)

    K/2\,

    Option 2)

    \; K\;

    Option 3)

    zero\;

    Option 4)

    K/4

    In the reaction,

    2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

    Option 1)

    11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

    Option 2)

    6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced

    Option 3)

    33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

    Option 4)

    67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .

    How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

    Option 1)

    0.02

    Option 2)

    3.125 × 10-2

    Option 3)

    1.25 × 10-2

    Option 4)

    2.5 × 10-2

    If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

    Option 1)

    decrease twice

    Option 2)

    increase two fold

    Option 3)

    remain unchanged

    Option 4)

    be a function of the molecular mass of the substance.

    With increase of temperature, which of these changes?

    Option 1)

    Molality

    Option 2)

    Weight fraction of solute

    Option 3)

    Fraction of solute present in water

    Option 4)

    Mole fraction.

    Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

    Option 1)

    twice that in 60 g carbon

    Option 2)

    6.023 × 1022

    Option 3)

    half that in 8 g He

    Option 4)

    558.5 × 6.023 × 1023

    A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

    Option 1)

    less than 3

    Option 2)

    more than 3 but less than 6

    Option 3)

    more than 6 but less than 9

    Option 4)

    more than 9

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    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. 

    4 Jobs Available
    Acrobat

    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.

    3 Jobs Available
    Video Game Designer

    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.

    3 Jobs Available
    Talent Agent

    The career as a Talent Agent is filled with responsibilities. A Talent Agent is someone who is involved in the pre-production process of the film. It is a very busy job for a Talent Agent but as and when an individual gains experience and progresses in the career he or she can have people assisting him or her in work. Depending on one’s responsibilities, number of clients and experience he or she may also have to lead a team and work with juniors under him or her in a talent agency. In order to know more about the job of a talent agent continue reading the article.

    If you want to know more about talent agent meaning, how to become a Talent Agent, or Talent Agent job description then continue reading this article.

    3 Jobs Available
    Radio Jockey

    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.

    3 Jobs Available
    Videographer

    Careers in videography are art that can be defined as a creative and interpretive process that culminates in the authorship of an original work of art rather than a simple recording of a simple event. It would be wrong to portrait it as a subcategory of photography, rather photography is one of the crafts used in videographer jobs in addition to technical skills like organization, management, interpretation, and image-manipulation techniques. Students pursue Visual Media, Film, Television, Digital Video Production to opt for a videographer career path. The visual impacts of a film are driven by the creative decisions taken in videography jobs. Individuals who opt for a career as a videographer are involved in the entire lifecycle of a film and production. 

    2 Jobs Available
    Multimedia Specialist

    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. 

    2 Jobs Available
    Producer

    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.

    2 Jobs Available
    Copy Writer

    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. 

    5 Jobs Available
    Editor

    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.

    3 Jobs Available
    Journalist

    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.

    3 Jobs Available
    Publisher

    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.

    3 Jobs Available
    Vlogger

    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. 

    3 Jobs Available
    Travel Journalist

    The career of a travel journalist is full of passion, excitement and responsibility. Journalism as a career could be challenging at times, but if you're someone who has been genuinely enthusiastic about all this, then it is the best decision for you. Travel journalism jobs are all about insightful, artfully written, informative narratives designed to cover the travel industry. Travel Journalist is someone who explores, gathers and presents information as a news article.

    2 Jobs Available
    Videographer

    Careers in videography are art that can be defined as a creative and interpretive process that culminates in the authorship of an original work of art rather than a simple recording of a simple event. It would be wrong to portrait it as a subcategory of photography, rather photography is one of the crafts used in videographer jobs in addition to technical skills like organization, management, interpretation, and image-manipulation techniques. Students pursue Visual Media, Film, Television, Digital Video Production to opt for a videographer career path. The visual impacts of a film are driven by the creative decisions taken in videography jobs. Individuals who opt for a career as a videographer are involved in the entire lifecycle of a film and production. 

    2 Jobs Available
    SEO Analyst

    An SEO Analyst is a web professional who is proficient in the implementation of SEO strategies to target more keywords to improve the reach of the content on search engines. He or she provides support to acquire the goals and success of the client’s campaigns. 

    2 Jobs Available
    Welding Engineer

    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. 

    5 Jobs Available
    QA Manager
    4 Jobs Available
    Product Manager

    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.  

    3 Jobs Available
    Quality Controller

    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.

    3 Jobs Available
    Production Manager
    3 Jobs Available
    Reliability Engineer

    Are you searching for a Reliability Engineer job description? A Reliability Engineer is responsible for ensuring long lasting and high quality products. He or she ensures that materials, manufacturing equipment, components and processes are error free. A Reliability Engineer role comes with the responsibility of minimising risks and effectiveness of processes and equipment. 

    2 Jobs Available
    Safety Manager

    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.

    2 Jobs Available
    Corporate Executive

    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.

    2 Jobs Available
    AWS Solution Architect

    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. 

    4 Jobs Available
    QA Manager
    4 Jobs Available
    Azure Administrator

    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. 

    4 Jobs Available
    Information Security Manager

    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 

    3 Jobs Available
    Computer Programmer

    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.

    3 Jobs Available
    Product Manager

    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.  

    3 Jobs Available
    ITSM Manager
    3 Jobs Available
    .NET Developer

    .NET Developer Job Description: A .NET Developer is a professional responsible for producing code using .NET languages. He or she is a software developer who uses the .NET technologies platform to create various applications. Dot NET Developer job comes with the responsibility of  creating, designing and developing applications using .NET languages such as VB and C#. 

    2 Jobs Available
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