Selina solutions concise biology class 8 icse Solutions for Chapter 7 nervous system

Exercises in Chapter 7 nervous system Grade 8

Long Answer Questions (LA)

Multiple Choice Questions (MCQ)

Short Answer Questions (SA)

Questions in Long Answer Questions (LA)

Q1) With the help of a suitable diagram describe the structures of a neuron .

Q2) Briefly describe the structure of th cerebrum in human brain and mention its function .

Q3) Mention the three functions of spinal cord.

Q4) With the help of suitable example, describe reflex action.

Q5) Describe three kinds of nerves, giving the example of each.

Q6) Differentiate between natural reflex and conditioned reflex. Give examples to illustrate your answer.

Questions in Multiple Choice Questions (MCQ)

Q1) Put a tick mark against the correct alternative in the following staements :

(a) Medulla oblongata controls

Smelling
Beating of heart and respiratory movement
Intelligence and will power
Balancing the body

(b) Balance of body is controlled by:

Spinal cord
cerebellum
cerebrum
Medulla

Natural reflex
Acquired reflex
Inborn reflex
Ordinary reflex

(d) The structural and functional unit of nervous system is a

Axon
Nephron
Neuron
Texon

Questions in Short Answer Questions (SA)

Q1) Name the two types of coordination which take place in our body .

Q2) You are driving your bicycle at a speed . Suddenly a small boy comes in front of your cycle and, without wasting any time in thinking, you immediately apply the brakes and accident is avoided. What name is given to such an action ?

Q3) Given below is the diagram of a neuron . Name the parts numbered 1-5.

Q4) Write one word in the space provided to complete the second pair of the related words pertaining to nervous system.

Memory : cerebrum :: breathing

Balance : cerebellum :: reasoning : cerebrum

Q5) Differentiate between the following pair of terms :

(a) Stimulus and impulse

(b) Receptor and effector

Q6)

(a) Name the three major divisions of the human nervous system .

(b) Name the thee main parts of human brain.

Q7) Give the function of each of the following :

(a) Olfactory nerve

(b) Optic nerve

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Chapters in this book

Transportation in plants

Reproduction in Plants

Reproduction in Humans

Ecosystems

Endocrine system and Adolescence

The Circulatory System

Nervous System

Disease and First Aid

Food Production

Lido

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