CBSE Class 11 Neural Control and Coordination Worksheet C

Download free printable worksheets for your students. All worksheets are in pdf format with the answers on the next page. Please give the questions to the child and then compare answers with the suggested answers provided by us. Free worksheets with questions and answers are available for all subjects. Use the worksheets to get better marks in tests and exams.

1. What types of neurons are found in dorsal root of spinal nerve?

2. What is the basic unit of neural system?

3. Why is blind spot devoid of the ability for vision?

4. Where does cerebrospinal fluid occur in our body? Mention two if its function.

5. What is the chemical and difference between rods & cones?

6. Why are gray matter and white matter contained in human nervous system named so?

7. Give the location and function in the human eye, of the following –

(i) cornea (ii) Iris (iii) Vitreous humor

8. Why are nerve impulses conducted more rapidly in myelinated nerve fiber than in a non – myelinated one? Explain.

9. Taking one example, describe the functioning of the various components of a spinal reflex arc. 

Solve the MCQ questions below

Question. Assertion :- Neurons can detect and receive information from different sense organs in the form of stimuli.
Reason :- Receptor are present on dendrites of neurons to receive stimuli.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Neurons transmit the stimuli to CNS through efferent nerve fibres.
Reason :- CNS is formed by brain only.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Nervous system is present in all animals.
Reason :- Simplest type of nervous system present in chordates.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- The nerves arising from central nervous system constitute the peripheral nervous system.
Reason :- Nerves transmit impulses from organ to CNS and CNS to effector organ.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- The efferent nerve fibres transmit motor impulses from CNS to the concerned tissue.
Reason :- Impulses are the message generated in neuron known as action potential.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Cardiac muscles have auto excitability property so they can generate impulses and start beating.
Reason :- Vagus nerve is a part of sympathetic nervous system which increases heart beat.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Neurons are the longest cells of the body.
Reason :- Neurons possess branched and unbranched projections on it.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Cyton of a neuron have abundant cytoplasm and large spherical nucleus and Nissl's granules.
Reason :- Nissl's granules are irregular mass of R.E.R. and protein.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- Myelin sheath on axon is deposition of phospholipid secreted by Schawann cells.
Reason :- Schwann cell present around myelinated nerve fibres only.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Amacrine cells are bipolar neurons.
Reason :- Bipolar neurons are present only in our eyes.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Brain is present in cranium which is covered by 3 meninges.
Reason :- Arachnoid is thick middle layer present in brain of all living organisms for protection.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Cerebellum is the most developed part of brain which controls maximum functions of body.
Reason :- Surface of cerebellum is highly folded so that more number of neurons can be present.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Limbic system is called as ‘‘Emotional Brain’’.
Reason :- Emotional behaviour like joy, sorrow, fear, fight, liking, disliking all are controlled by limbic system.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Brain is hollow and tubular structure.
Reason :- Ventricle like cavities found in brain and inter connected to each other.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Cerebellum responsible for body balance and skillful movement of body.
Reason :- Cerebellum controls involuntary movement of voluntary muscles.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- C.S.F. formed in third ventricle flow to the \( IV^{th} \) ventricle of brain.
Reason :- Aqueduct of Sylvius or Iter present in mid brain connects forebrain to hind brain.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Main spinal Cord extend from \( C_1 \) to \( L_2 \) & \( L_3 \) region of vertebral column.
Reason :- Length of spinal cord is 25-30 cm in adult.
(a) A
(b) B
(c) C
(d) D
Answer: D

Question. Assertion :- Spinal cord ends as conus medullaris at the level of second lumbar vertebra.
Reason :- All nerves arise from spinal cord is collectively called ‘‘Cauda equina’’.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Total 24 nerves arises from human brain.
Reason :- Trigeminal is the longest one.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- Trochlear is a fourth cranial nerve responsible for the movement of eyeball.
Reason :- Pure sensory cranial nerves are III, IV and V.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- The time taken by a neuron to attain polarised condition after excitation is called refractory period.
Reason :- Any neuron can receive and transmit impulse only when it is in resting stage.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- \( Na^+ \)–\( K^+ \) pump is responsible for maintaining the resting state of neuron.
Reason :- \( 3Na^+ \) efflux and \( 2K^+ \) influx passively by pump.
(a) A
(b) B
(c) C
(d) D
Answer: C

Question. Assertion :- The functions of the organs/organ systems in our body must be coordinated to maintain homeostasis.
Reason :- In our body the neural system and the endocrine system jointly co-ordinate and integrate all the activities of the organs so that they function in a synchronised fashion.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- In Hydra neural system is composed of a network of neurons.
Reason :- The neural organisation is very simple in lower invertebrates.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- CNS is site of information processing and control.
Reason :- CNS includes brain and the spinal cord.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- P.N.S. is divided into two divisions called somatic neural system and autonomic neural system.
Reason :- Visceral nervous system is also named as autonomic neural system.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- The neurons are divided into 3 types- multipolar, bipolar and unipolar.
Reason :- Basis of division of neurons is number of axon and dendrites.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Neurons are excitable cells.
Reason :- Membranes of neurons are in a polarised state.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Membrane of neuron is polarised.
Reason :- Different types of ion channels are present on the neural membrane which are selectively permeable to different ions.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Transmission of an impulse across electric synapses is very similar to impulse conduction along a single axon.
Reason :- At electric synapses, the membranes of pre and post synaptic neurons are in very close proximity.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Electric current can flow directly from one neuron into other across electric synapses.
Reason :- Impulse transmission across an electric synapse is always faster than that across a chemical synapse.
(a) A
(b) B
(c) C
(d) D
Answer: B

Question. Assertion :- At a chemical synapse, the pre synaptic neruon transmits an impulse (action potential) across the synaptic cleft to the post synaptic neuron.
Reason :- Chemicals called neurotransmitter are involved in the transmission of impulse at these synapses.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Cerebral cortex is responsible for complex functions like intersensory associations, memory and communication.
Reason :- Central cortex contains large regions called as the association areas.
(a) A
(b) B
(c) C
(d) D
Answer: A

Question. Assertion :- Midbrain, pons and medulla collectively termed as brain-stem.
Reason :- Brain stem forms the connections between brain and spinal cord.
(a) A
(b) B
(c) C
(d) D
Answer: A
 

Click on link below to download CBSE Class 11 Neural Control and Coordination Worksheet C.