Academic session 2026-27, Chapter 18 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Neural Control and Coordination. This page offers a step-by-step solution to the specific question from Exercise 1, Question 2: Compare the following:
(a) Central neural system (CNS) and Peripheral neural system (PNS)
(b) Resting potential and action potential
(c) Choroid and retina.
With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
(a) Central neural system (CNS) and Peripheral neural system (PNS)
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Central neural system |
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Peripheral neural system |
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1. |
It is the main coordinating centre of the body. |
1. |
It is not the main coordinating centre of the body. |
|
2. |
It includes brain and spinal cord. |
2. |
It includes cranial and spinal nerves that connect central nervous system to different parts of the body. |
(b) Resting potential and action potential
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Resting potential |
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Action potential |
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1. |
It is the potential difference across the nerve fibre when there is no conduction of nerve impulse. |
1. |
It is the potential difference across nerve fibre when there is conduction of nerve impulse. |
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2. |
The membrane is more permeable to K+ ions than to Na+ ions. |
2. |
The membrane is more permeable to Na+ ions than to K+ ions. |
(c) Choroid and retina
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Choroid |
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Retina |
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1. |
Choroid is the middle vascular layer of eye. |
1. |
Retina is the innermost nervous coat of eye. |
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2. |
It contains numerous blood vessels that provide nutrients and oxygen to retina and other tissues. |
2. |
It contains photoreceptor cells, rods and cones that are associated with twilight and colour vision respectively. |
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 2: Compare the following: (a) Central neural system (CNS) and Peripheral neural system (PNS) (b) Resti....
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really helpful