NCERT Solutions for Class 10 Science Chapter 6 Control and Coordination

According to the CBSE Syllabus 2025-26, this chapter has been renumbered as Chapter 6.

NCERT Solutions for Class 10 Science Chapter 6 Control and Coordination - Studying the solutions to these questions increases the confidence of the students while appearing for the exams. The Control and Coordination Class 10 NCERT Solutions provides step-by-step explanations for textbook questions, helping students understand the functioning of coordination systems in both plants and animals. These solutions include diagrams, flowcharts, and real-life examples to make learning easier and more effective. The NCERT solutions prove very useful for students in their board exams.

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Suggested: NCERT Class 10 Science: Chapterwise Important Formulas, Diagrams, and Points

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1. NCERT Class 10 Science Chapter 6 Control and Coordination Solutions PDF
2. CBSE NCERT Solutions for Class 10 Science - Chapterwise Table
3. Class 10 Science Chapter 7 Control and Coordination- Concepts
4. NCERT Solutions for Class 10 Science Chapter 6 Control and Coordination - Topics and Subtopics

The Chapter 6 Science Class 10 Solutions include solutions that help students practice key concepts and prepare for exams. Solving these questions allows students to develop a clear understanding of coordination mechanisms and their importance in living organisms. The solutions in NCERT Solutions for Class 10 are written in simple language to improve concept clarity.

NCERT Class 10 Science Chapter 6 Control and Coordination Solutions PDF

Given below is the NCERT PDF solution of Chapter 6 for easy access to all the exercise questions and answers.

Download Solution PDF

Also Read,

• Control and Coordination Class 10 NCERT Exemplar Solutions
• Control and Coordination NCERT Class 10 NCERT Chapter Notes

NCERT Solutions for Class 10 Science Chapter 6 Question and Answer

So, basically in this section, we will see the NCERT Excercise Questions. These questions are one of the most important parts of understanding the topics.

Solutions of NCERT for Class 10 Science Chapter 6 Control and Coordination, Topic 6.1 - Animals Nervous System: Page number 105

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

Answer:

The difference between a reflex action and walking-

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

Answer:

The synapse is the small 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 reach the other neurons with the help of dendrite. Therefore, the information signal is transmitted from one neuron to other neurons by synapse.

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

Answer:

The cerebellum controls 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 send 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 6 Question and Answer, Topic 6.2 - Coordination in plants: Page number 108

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:

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

Answer:

Auxins are phytohormones that promote the growth in plants.

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

Answer:

When the tip of the tendril touches support, then the 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 the tendril away from the support grows longer and faster than the support side. This type of growth, 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.

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 the 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.

Class 10 Control and Coordination question and answer, Topic 6.3 Hormones in Animals: Page number 111

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 hormones directly into the bloodstream that directly reach the specific cells. These cells act according to the information that particular hormones carry.

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

Answer:

Thyroid glands need iodine to produce the thyroxine hormone which, controls the metabolic activities in our body such as the metabolism of carbohydrates, fats protein etc. Also, due to a 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 greater. The amount of blood to the digestive system and skin is reduced because 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 the diaphragm and rib muscles.

Q.4. Why are some patients with 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 6 Question Answer: Exercise Questions, Page number 112

Solving the Exercise Problem is a good habit, as it makes you more confident and decreases student stress. So, in this, we will cover All NCERT questions with their proper solution.

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 heartbeat
(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 actions 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 the eye, ear, skin, nose and tongue. For example, olfactory receptors 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-

A neuron is the functional unit of the nervous system. It has three main parts-

• Cell body
• Dendrite
• Axon

The function of nerve cells-

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.

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 the 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 in 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 happen-

1. All involuntary actions will be 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 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 a 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.

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

Answer:

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

Answer:

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

Answer:

CBSE NCERT Solutions for Class 10 Science - Chapterwise Table

The chapters of Class 10 Science are given below-

Solutions of NCERT Class 10: Subject-Wise

• NCERSolutionsns for Class 10 Science
• NCERT Solutions for Class 10 Maths

Class 10 Science Chapter 7 Control and Coordination- Concepts

The chapter explains how organisms regulate and their response to stimuli through nervous and endocrine systems. The chapter discusses the various topics:-

Animals – Nervous System

• The nervous system of animals explains the central nervous system (CNS), peripheral nervous system (PNS) and autonomic nervous system (ANS).
• The different nervous systems work together to regulate all body functions.
• The neurons receive sensations and deliver reactions allowing organisms to react to the environment.

Coordination In Plants

• This topic discusses how plants respond to stimuli without a proper nervous system.
• Plants utilise hormones such as auxins, cytokinins, etc., to regulate growth and movement.
• There are various responses such as phototropism (response to sunlight), and geotropism (response to gravity) which allow plants to help adapt to the environment.

Hormones In Animals

• This topic explains how various animal hormones regulate body function and maintain homeostasis.
• There are endocrine glands such as the pituitary gland, thyroid gland, etc., that secrete hormones.
• The hormones control body functions such as growth, metabolism and reproduction.

Download Ebook - NCERT Class 10 Science Ebook- Science Formulas and Diagrams

NCERT Solutions for Class 10 Science Chapter 6 Control and Coordination - Topics and Subtopics

Let's take a quick look at the topics and subtopics covered in Control and Coordination Class 10 NCERT Chapter 6 Control And Coordination:

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

Important Diagrams of Class 10 Science Chapter 6 Control and Coordination

The important diagrams of Control and Coordination are given below-

The diagram of the reflex arc is given above.

The diagram of the human brain is given above.

Check NCERT Books and NCERT Syllabus here:

• NCERT Books Class 10 Science
• NCERT Syllabus Class 10 Science
• NCERT Books Class 10
• NCERT Syllabus Class 10

The Control and Coordination Class 10 questions and answers provide a detailed explanation of all the topics in the chapter. These solutions are written in an easy-to-understand manner. With step-by-step answers to textbook exercises, the solutions are formulated by the experts to provide the required information. Diagrams are also provided to improve learning. Overall, the solutions will help the students to understand the concepts clearly and perform well in exams.