NCERT Solutions For Class 11 Biology Chapter 21

Ncert Solutions For Class 11 Biology Chapter 21 PDF Free Download

NCERT solutions for class 11 biology chapter 21 Neural Control and Coordination is provided here for the benefit of the students. This is an extremely important topic in Biology from the point of class 11, Class 12 and competitive exams like JEE and NEET. Students should gain a thorough knowledge of this chapter in order to excel in the examination. We at BYJU’S provide the NCERT Solutions for Class 11 Biology Neural Control and Coordination pdf which students can download. Practising the questions will be very helpful for the students to understand the topic thoroughly.

To make you understand the topic deeply BYJU’S provides NCERT solutions for class 11 biology in pdf download. This solution comprises of answers to the questions in the textbook, exemplary questions, important questions and MCQ’s. Worksheets, exercises and questions provided here help the students in preparing note which comes handy while revising the topics.

NCERT solutions for class 11 biology chapter 21 Neural Control and Coordination

Neurons are highly specialised cells in all animals which help in detecting, receiving and transmitting of the signals. Central nervous system (CNS) and peripheral nervous system (PNS) are two divisions of the brain in the human body. Signals from organs or tissues are transmitted to CNS through afferent nerve fibres. Whereas the impulses from CNS to organs is transmitted through efferent fibres. The parts of a neuron are Dendrites, cell body, nucleus, Nissl’s granules, Schwann cell, Axon, Myelin sheath, Node of Ranvier, Axon terminal, Synaptic knob. This is a brief on Neural Control and Coordination.

NCERT Solutions for Class 11 Biology Neural Control and Coordination chapter briefs the following concepts:

  1. Neural system
  2. Human neural system:
    1. Afferent fibres.
    2. Efferent fibres.
  3. The neuron as a structural and functional unit of the neural system
  4. Generation and conduction of nerve impulse:
    1. Resting potential.
    2. Action potential.
  5. Transmission of impulses:
    1. Synapse.
    2. Synaptic Cleft.
  6. Central neural system:
    1. Forebrain.
    2. Midbrain.
  7. Reflex action and reflex arc.
  8. Sensory reception and processing.
  9. Eye:
    1. Parts of an eye.
    2. Mechanism of vision.
  10. The ear: Mechanism of hearing.

Class 11 Biology NCERT Solutions Neural Control and Coordination Important Questions

(b) Resting potential and action potential

(c) Choroid and retina

(b) Dendrites and axons

(c) Rods and cones

(d) Thalamus and Hypothalamus

(e) Cerebrum and Cerebellum

(f) Cranial nerves and spinal nerves

Answer: (c) Blindspot


(a) Afferent neurons and efferent neurons

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

(c) Aqueous humour and vitreous humour

(d) Blind spot and yellow spot

(e) Cranial nerves and spinal nerves

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Downloadable files of ebooks, chapter 21 biology class 11 notes and pdfs are available at BYJU’S for students to start their exam preparation without delay. Once after registering with BYJU’S access to the online course is very simple. To know more about the Neural system division: Central neural system, Peripheral neural system, difference between somatic neural system, autonomic neural system, sympathetic neural system, parasympathetic neural system, Details of the structure of neuron, Nerve impulse, Receptors, working of forebrain, midbrain, hindbrain, eyes and ears etc. sign up on BYJU’S the learning app.

Apart from this chapter, you can download NCERT SOLUTIONS for other Classes as well. Students can download worksheets, assignments, NCERT Class 11 Biology Solutions and other study materials for exam preparation and score better marks.