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NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination

NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination

Edited By Irshad Anwar | Updated on Oct 08, 2023 10:53 AM IST | #CBSE Class 10th

NCERT Solutions for Class 10 Science Chapter 7 – Download Free Solutions PDF

NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination - According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 6. The chapter on control and Coordination is among the most important chapters in Class 10. The Class 10 Science Chapter 7 Question Answer will help you solve each and every question given in this chapter in the NCERT Textbook for Class 10 Science. The NCERT Control and Coordination Class 10 Science Solutions are given in such a way that you can understand them easily. Since Class 10 is a board exam, you must need help to practice and learn NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination. You are advised to go through NCERT Solutions for Class 10 to score good marks in Board examination.

NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination
NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination

NCERT Class 10 Science Chapter 7 Biology: Students can compare their answers to the model responses by using the in-depth solutions to the NCERT textbook questions. The exercises and in-text questions in the NCERT textbooks are briefly explained in the Chapter-wise NCERT solutions for class 10 science in this chapter. Read on to find everything about Control and Coordination Class 10. NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination Solutions PDF are available for free download.

NCERT Class 10 Science Chapter 7 Control and Coordination Solutions PDF

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Access Class 10 Science Chapter 7 Question Answer

NCERT Solutions for Class 10 Science Chapter 7 Intext Questions

Control and Coordination Class 10 Solutions, Topic 7.1 - Animals Nervous System: Page number 119

Q.1. What is the difference between a reflex action and walking ?

Answer:

The difference between a reflex action and walking-

REFLEX ACTION
  1. This action is performed by automatically
  2. It is control and coordinated by the spinal cord
  3. It is an involuntary action.

WALKING
  1. It is a reaction to the signal transmitted by the nerve to the muscles. Here, thinking is involved
  2. Brain instructs and controls the muscles of the leg to for moving.
  3. It is a voluntary action.

Q.2 . What happens at the synapse between two neurons ?

Answer:

The synapse is the small empty space between the two nerve cells. At the synapse, a chemical substance is produced at the end of the axon of one of the neurons that reaches to the other neurons with the help of dendrite. Therefore, the information signal is transmitted through one neuron to other neurons by synapse.

Q.3. Which part of the brain maintains posture and equilibrium of the body ?

Answer:

Cerebellum control and maintains the posture and equilibrium of the body.

Q.4. How do we detect the smell of an agarbatti (incense stick) ?

Answer:

The smell of agarbatti (incense stick) mixed in the air. It is detected by the olfactory receptor of the nose. The sensory nerves of the forebrain sent this information to the olfactory lobe and respond to the information signal.

Q.5. What is the role of the brain in reflex action ?

Answer:

There is no role of the brain in a reflex action. These involuntary actions are controlled by the spinal cord, which reacts immediately without thinking of how to respond to a stimulus.

Solutions of NCERT for Class 10 Science Chapter 7 Control and Coordination, Topic 7.2 - Coordination in plants: Page number 119

Q.1. What are plant hormones ?

Answer:

Plant hormones - These are also called phytohormones. Plant hormones are the chemical substance which helps in the growth of the plant(height), flowering and also the development of plants and their response to the environment.
For example; auxins, gibberellins and cytokinins are some phytohormones.

Q.2. How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light ?

Answer:

Here is the difference:

Movement of leaves of sensitive plants Movement of shoot towards light
1. It does not depend on the direction of the stimulus applied. 1. It depends on the direction of the stimulus applied.
2. The stimuli is touch. 2. The stimulus is light
3. It is due to the sudden loss of water from the swelling at the base of the leaves. 3. It is caused by the uneven growth on two sides of the shoot.
4. It is not a growth movement. 4. It is a growth movement.

Q.3. Give an example of a plant hormone that promotes growth

Answer:

Auxins is phytohormones that promote the growth in plants.

Q.4. How do auxins promote the growth of a tendril around a support ?

Answer:

When the tip of tendril touches support, then auxin of that side of the tip is moving away from the side of the support. As we know, auxin promotes growth. So, due to the presence of more auxin in it, the side of tendril away from the support grow longer and faster than the support side. And due to this type of growth, it makes the tendrils bend around the support.

Q.5. Design an experiment to demonstrate hydrotropism

Answer:

The movement of the plant in the direction of the stimulus is called tropism.

AIM: To demonstrate hydrotropism in plants.

PROCEDURE :

i. Plant a seedling in a vessel containing soil.

ii. Adjacent to the seedling put a porous pot containing water.

iii. Leave the set up for a few days.

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OBSERVATION :

iv. On examining the roots of seedlings it is observed that the roots bend towards the source of water and do not grow straight.

RESULT :

It confirms that plant shows hydrotropism as the roots bend towards the porous pot of water. Hydrotropism is a plant growth response in which the direction of growth is determined by a stimulus of the gradient in water concentration.

Control and Coordination Class 10, Topic 7.3 Hormones in Animals: Page number 125

Q.1 . How does chemical coordination take place in animals ?

Answer:

In animals, chemical coordination takes place through the hormones secreted by the endocrine gland. It can also be done by the nervous system, which is called the endocrine system. Endocrine glands secrete hormone directly into the bloodstream that directly reaches to the specific cells. These cells act accordingly to the information that particular hormones carry.

Q.2. Why is the use of iodised salt advisable ?

Answer:

Thyroid glands need iodine to produce the thyroxine hormone which, controls the metabolic activities in our body such as metabolism of carbohydrates, fats and protein etc. Aso, due to lack of thyroxin a disease called goitre is caused.

That's why it advised using iodised salts.

Q.3. How does our body respond when adrenaline is secreted into the blood ?

Answer:

The rate of heartbeat becomes faster when adrenaline is secreted into the blood so that the supply of oxygen to our muscles is more. The amount of blood to the digestive system and skin is reduced because of the small arteries around the muscles of these organs contract.

As a result, it turns the direction of blood towards our skeletal muscles. The respiration function becomes faster due to the contraction of diaphragm and rib muscles.

Q.4. Why are some patients of diabetes treated by giving injections of insulin ?

Answer:

Insulin hormone regulates the level of sugars in the blood. If it is not adequately secreted, then the sugar level rises in our blood, causing many harmful effects. So, that is why diabetic patients are treated by giving injections of insulin.

NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination: Exercise Questions, Page number 126

Q.1. Which of the following is a plant hormone ?

(a) Insulin
(b) Thyroxin
(c) Oestrogen
(d) Cytokinin.

Answer:

The correct option is (D)

Plant hormones are auxins, gibberellin, cytokinin etc. Insulin, thyroxine and estrogen are hormones secreted by the human body.

Q.2. The gap between two neurons is called as :

(a) dendrite.
(b) synapse.
(c) axon.
(d) impulse.

Answer:

The correct option is (b)

A small space between the two nerve cells is known as the synapse. It helps in the transmission of an information signal.

Q.3. The brain is responsible for

(a) thinking.
(b) regulating the heart beat.
(c) balancing the body.
(d) all of the above.

Answer:

The function of the brain is; thinking, regulating the heartbeat, and balancing the body. All the voluntary action are controlled by the different parts of the brain.

So, the correct option is (d)

Q.4. What is the function of receptors in our body? Think of situations where receptors do not work properly. What problems are likely to arise ?

Answer:

The function of receptors is to detect the information from the environment. These are located in our sensory organs like eye, ear, skin, nose and tongue. For example, olfactory receptor detect the smell. If these receptors do not work correctly, there will be a delay in getting information from the environment to the brain or spinal cord and due to this, the reaction of the information is also late, which causes harmful effects on our body.

For example,- if skin receptors are damaged, then we cannot get the heat as a stimulus. And if we accidentally touch the hot object, then our hands might get burnt.

Q.5. Draw the structure of a neuron and explain its function .

Answer:

The structure of the nerve cell or neuron-
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A neuron is the functional unit of the nervous system. It has three main parts-

  • Cell body
  • Dendrite
  • Axon

The function of nerve cell-

It carries the information in the form of an electrical signal, known as nerve impulses. Cells receive a stimulus to send it to the brain and the spinal cord carries the message from the brain to the target organs.

Control and Coordination Class 10 Questions and Answers:

Q.6. How does phototropism occur in plants ?

Answer :

Phototropism is the movement of any part of the plant due to light. Positive phototropism is shown by the shoot of the plant and root shows negative phototropism. This phenomenon is due to the plant hormone, called auxin.

When light falls on the side of the plant, the auxin hormone shifts towards the other side, which is away from the light. Thus auxin causes growth is the length of the cells in the shady part. As a result, the plant appears to be bent towards the sun.

Q.7. Which signals will get disrupted in case of a spinal cord injury ?

Answer:

In the case of spinal cord injury, the following will happens-

  1. All the involuntary action will get disturbed
  2. Reflex action will be disturbed because reflexes are located in the spinal cord, and so, the quick response to guard ourselves will not take place.

Q.8. How does chemical coordination occur in plants ?

Answer:

Phytohormones or plant hormones are responsible for the chemical coordination in plants.

These hormones regulate the growth of the plants. For example- Auxin can help in the growth of the plant (stem)and Cytokinin is responsible for the cell division.

Q.9. What is the need for a system of control and coordination in an organism ?

Answer:

For the following function, an organism needs control and coordination system-

  1. To save the body of the organism from the changes in the environment.
  2. Control the speed of voluntary and involuntary action
  3. the capability of thinking and responding to any external stimuli.

Control and Coordination Class 10 NCERT Solutions

Q.10. How are involuntary actions and reflex actions different from each other ?

Answer:

INVOLUNTARY ACTION
1. Actions which occurs immediately without any thinking are known as an involuntary action.
2. Involuntary actions are controlled by the mid-brain and hind-brain.
example- breathing, the beating of heart etc 		REFLEX ACTION
1. It is an immediate response to an event which does not require any processing of by brain
2. These activities are controlled by the spinal cord.
example- sneezing, coughing etc.

Q.11. Compare and contrast nervous and hormonal mechanisms for control and coordination in animals .

Answer:

NERVOUS MECHANISM HORMONAL MECHANISM

  • It is a fast process
  • Affect on arteries and glands
  • It transmits in electrochemical form
  • Does not control metabolism.
  • Growth is not affected

  • It is a slow process
  • It affects the target organs
  • It transmits in the chemical form
  • It controls the metabolism
  • Growth is affected.


Q.12. What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs ?

Answer:

Movement in a sensitive plant Movement in a human leg
  • Movement in sensitive plants is due to involuntary action. It is in response to a stimulus (touch), for example, Mimosa Pudica
  • It is also not controlled by any part of the plant

  • Movement in the human legs is a voluntary action
  • It is controlled by the brain and spinal cord of our body.

  • No special tissues are needed for the transfer of information.
  • The information is transferred through the nervous system.








More about NCERT solutions for class 10 science chapter 7 control and coordination

  • You are going to learn more about the nervous system of animals, reflex actions, coordination in plants and hormones in animals from the NCERT Solutions for Control and Coordination Class 10 Science Chapter.
  • There are two sections in Class 10 Science board exam of CBSE, section A and section B. Therefore, 80 marks are for written test and 20 marks are for internal assessment.
  • Class 10 Science Chapter 7 NCERT solutions - Weightage in Board exams
  • In 2018 board exam, 3 marks questions were asked from this Control and Coordination Question Answer. So, if you learn NCERT Solutions for Class 10 Science Control and Coordination, you will put 3 marks in your pocket directly.
  • Since board exams are very crucial, you must go through each and every concept behind the NCERT Class 10 Science solutions chapter 7.

Chapter-wise NCERT Solutions for Class 10 Science



Chapter No.

Chapter Name

Chapter 1

Chemical Reactions and Equations

Chapter 2

Acids, Bases, and Salts

Chapter 3

NMetals and Non-metals

Chapter 4

Carbon and Its Compounds

Chapter 5

Periodic Classification of Elements

Chapter 6

Life Processes

Chapter 7

Control and Coordination

Chapter 8

How do Organisms Reproduce?

Chapter 9

Heredity and Evolution

Chapter 10

Light Reflection and Refraction

Chapter 11

The Human Eye and The Colorful World

Chapter 12

Electricity

Chapter 13

Magnetic Effects of Electric Current

Chapter 14

Sources of Energy

Chapter 15

Our Environment

Chapter 16

Sustainable Management of Natural Resources

Class 10 Science Control and Coordination: Important Formulas and Diagrams + eBook link

When it comes to science, apart from Control and Coordination Class 10 Questions and Answers, grouping the most important formulas, diagrams, and points in one place enables a quick glance and an instant reminder, which can cut down on revision time once the concepts are understood.

After going through Control and Coordination Class 10 Solutions, you can save time and quickly review each important formula with examples that you might encounter on your exams by using this ebook. In your final exams and monthly tests, you will frequently see these formulas, diagrams, and key concepts.

Download Ebook - NCERT Class 10 Science: Chapterwise Important Formulas, Diagrams, And Points

NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination - Topics and Subtopics

Chapter 7 Science Class 10: Let's take a quick look at the topics and subtopics covered in Control and Coordination Class 10 NCERT questions before diving into the specifics of the NCERT Solutions For Class 10 Science Chapter 7 Control And Coordination:

  • Control And Coordination
  • Animals – Nervous System
  • Coordination In Plants
  • Hormones In Animals

Ch 7 Science Class 10 is now known as Chapter 6 in the CBSE Syllabus for 2023–24.

How to use NCERT Solutions for Class 10 Science Chapter 7 Control and Coordination?

  • Practice should be the only mantra which will help you achieve your goal of getting high scores in CBSE Class 10 science exam.
  • You must go through the previous 5 years question papers of CBSE and its NCERT Class 10 Science chapter 7 solutions.
  • You must go in detail while studying the chapter and NCERT solutions for Control and Coordination Class 10 Science chapter 7 since in board exams though there will be direct questions from NCERT yet some of the questions will be based out of concepts studied.
  • NCERT solutions for Ch 7 Science Class 10 pdf download will be available soon, till then students can download the webpage to practice the solutions offline.

Highlights of NCERT Control and Coordination Class 10 Solutions:

  • The NCERT (CBSE) Syllabus and Books are strictly followed in the Control and Coordination Class 10 Questions and Answers.
  • The Control and Coordination Class 10 Solutions are easy-to-understand and comprehensive
  • On this page, you will find clear and concise Class 10 Science Chapter 7 Question Answer.
  • The solutions given for Science Chapter 7 Class 10 help clear doubt and give in-depth knowledge of concepts.
  • The solutions provided for Class 10 Chapter 7 Science are prepared by subject matter experts in the easiest possible way.
  • All the exercise questions and in-text solved questions are available in the Chapter 7 Science Class 10 PDF.
  • Stepwise solutions are provided here in NCERT Solutions for Class 10 Science Control and Coordination PDF.
  • Diagrams are provided wherever required for a better understanding of CBSE Class 10 Science Ch 7.
  • Class 10 science chapter 7 solutions will help you to score good marks in board exams.
  • Control and Coordination Class 10 NCERT Solutions PDF are accessible to everyone at any time anywhere without any difficulty.
  • This page contains free Control and Coordination Question Answer .

Also, Check NCERT Books and NCERT Syllabus here:

Solutions of NCERT Class 10: Subject-Wise

Frequently Asked Questions (FAQs)

1. What is the weightage of Chapter 7 Control and Coordination in CBSE class 10 board final exam?

Weightage of Chapter 14 Sources of Energy is 3-4 marks for  CBSE board exam. Solve CBSE previous year paper for a  good score and students can also refer to NCERT exemplar.

2. Will the questions be asked directly from the NCERT solutions for Class 10 Science chapter 7?

No, the questions will not be exactly the same. There may be different questions based on the concepts discussed in the NCERT book.  

3. Why should I download NCERT Solutions for Class 10 Science Chapter 7 PDF from Careers360?
  • The NCERT (CBSE) Syllabus and Books are strictly followed in the control and coordination class 10 questions and answers.
  • The control and coordination class 10 solutions are easy-to-understand and comprehensive
  • On this page, you will find clear and concise control and coordination class 10 important questions with answers. 
  • The control and coordination question answer help clear doubt and give in-depth knowledge of concepts.
  • The control and coordination solutions are prepared by subject matter experts in the easiest possible way.
  • ch 7 science class 10 ncert solutions will help you to score good marks in board exams.
  • Control and coordination class 10 NCERT solutions pdf are accessible to everyone at any time anywhere without any difficulty.
  • This page contains free class 10 control and coordination solutions.

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Read Complete Answer
sai raja 01 September,2024
show the previous year exams ?

Hello Aspirant,  Hope your doing great,  your question was incomplete and regarding  what exam your asking.

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SWETCHCHA MISKA 10 July,2024
as an icse student in class 10 is above 80 percent good enough to get into commerce in 11th cbse

Yes, scoring above 80% in ICSE Class 10 exams typically meets the requirements to get into the Commerce stream in Class 11th under the CBSE board . Admission criteria can vary between schools, so it is advisable to check the specific requirements of the intended CBSE school. Generally, a good academic record with a score above 80% in ICSE 10th result is considered strong for such transitions.

Read Complete Answer
Manasvini Gupta 23 July,2024
i had cleared 10th from cbse in 2022 2 years ago now i wish to apply for 12th as private candidate in 2025. can i do so?

hello Zaid,

Yes, you can apply for 12th grade as a private candidate .You will need to follow the registration process and fulfill the eligibility criteria set by CBSE for private candidates.If you haven't given the 11th grade exam ,you would be able to appear for the 12th exam directly without having passed 11th grade. you will need to give certain tests in the school you are getting addmission to prove your eligibilty.

best of luck!

Read Complete Answer
Ashvadha 03 July,2024
i had cleared 10th in 2022 from cbse can i apply for 12th as private candidate this year?

According to cbse norms candidates who have completed class 10th, class 11th, have a gap year or have failed class 12th can appear for admission in 12th class.for admission in cbse board you need to clear your 11th class first and you must have studied from CBSE board or any other recognized and equivalent board/school.

You are not eligible for cbse board but you can still do 12th from nios which allow candidates to take admission in 12th class as a private student without completing 11th.

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