NCERT Solutions Class 11 Biology Chapter 21 – Download PDF
Get here NCERT Solutions Class 11 Biology Chapter 21. These NCERT Solutions for Class 11 of Biology subject includes detailed answers of all the questions in Chapter 21 – Neural Control and Coordination provided in NCERT Book which is prescribed for class 11 in schools.
Resource: National Council of Educational Research and Training (NCERT) Solutions
Class: 11th Class
Subject: Biology
Chapter: Chapter 21 – Neural Control and Coordination
NCERT Solutions Class 11 Biology Chapter 21 – Free Download PDF
NCERT Solutions Class 11 Biology Chapter 21 – Neural Control and Coordination
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.
Neurons are highly specialised cells in all animals which help in detecting, receiving and transmitting of the signals. The 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.
- Neural system
- Human neural system:
- Afferent fibres.
- Efferent fibres.
- The neuron as a structural and functional unit of the neural system
- Generation and conduction of nerve impulse:
- Resting potential.
- Action potential.
- Transmission of impulses:
- Synapse.
- Synaptic Cleft.
- Central neural system:
- Forebrain.
- Midbrain.
- Reflex action and the reflex arc.
- Sensory reception and processing.
- Eye:
- Parts of an eye.
- Mechanism of vision.
- The ear: Mechanism of hearing.
(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
Answer:
(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
