Class 11 Biology MCQ Chapter 18 Neural Control and Coordination
Are you searching for Class 11 Biology MCQ Chapter 18 Neural Control and Coordination English Medium? If yes, then this article is the perfect place for your exam preparation. Here, you will find important multiple-choice questions (MCQs) with answers based on the latest AHSEC syllabus.
The chapter Neural Control and Coordination explains how the nervous system controls and coordinates different activities of the human body. Students will learn about neurons, nerve impulses, the central nervous system, peripheral nervous system, reflex action, sensory receptors, and the structure and functions of the human brain. These topics are important for understanding how the body responds to internal and external stimuli.
The MCQs provided in this article are carefully selected to help students revise important concepts and improve their understanding of the chapter. Regular practice of these objective questions can help students strengthen their preparation and perform better in examinations.
Whether you are preparing for school tests, annual examinations, or the AHSEC HS First Year Final Examination, these MCQ solutions will help you learn the chapter in a simple way and score higher marks in Biology.
Unit V. Human Physiology
Neural Control and Coordination
VSA & MCQ
I. Short Answer Questions (1 Mark Each)
1. What is a neuron?
Ans: A neuron is the structural and functional unit of the nervous system.
2. What is the function of dendrites?
Ans: Dendrites receive nerve impulses and carry them towards the cell body.
3. What is the function of an axon?
Ans: An axon carries nerve impulses away from the cell body.
4. What is myelin sheath?
Ans: Myelin sheath is a fatty insulating layer surrounding the axon of some neurons.
5. What is a synapse?
Ans: A synapse is the junction between two neurons where nerve impulses are transmitted.
6. Name the three major parts of the brain.
Ans: The three major parts are forebrain, midbrain and hindbrain.
7. Which is the largest part of the human brain?
Ans: Cerebrum is the largest part of the human brain.
8. What is the function of cerebellum?
Ans: Cerebellum maintains posture and balance of the body.
9. Which part of the brain controls involuntary activities?
Ans: Medulla oblongata controls involuntary activities.
10. What is resting potential?
Ans: Resting potential is the electrical potential difference across the membrane of a resting neuron.
11. What is action potential?
Ans: Action potential is the temporary reversal of membrane polarity during nerve impulse conduction.
12. What is depolarisation?
Ans: Depolarisation is the reversal of membrane polarity due to entry of sodium ions into the neuron.
13. What are neurotransmitters?
Ans: Neurotransmitters are chemical substances that transmit impulses across a synapse.
14. How many pairs of cranial nerves are present in humans?
Ans: Humans possess 12 pairs of cranial nerves.
15. How many pairs of spinal nerves are present in humans?
Ans: Humans possess 31 pairs of spinal nerves
II. Multiple Choice Questions (MCQs)
1. Structural and functional unit of nervous system is:
(a) Nephron
(b) Neuron
(c) Alveolus
(d) Osteocyte
Ans: (b)
2. The receiving part of a neuron is:
(a) Axon
(b) Node of Ranvier
(c) Dendrite
(d) Myelin sheath
Ans: (c)
3. Impulses move away from the cell body through:
(a) Dendrite
(b) Axon
(c) Cyton
(d) Synapse
Ans: (b)
4. The fatty insulating layer around axon is called:
(a) Neurolemma
(b) Dendron
(c) Myelin sheath
(d) Nissl granule
Ans: (c)
5. The junction between two neurons is known as:
(a) Node
(b) Synapse
(c) Cortex
(d) Ganglion
Ans: (b)
6. Which ion enters the neuron during depolarisation?
(a) Calcium
(b) Potassium
(c) Sodium
(d) Chloride
Ans: (c)
7. Which ion moves out during repolarisation?
(a) Potassium
(b) Sodium
(c) Calcium
(d) Magnesium
Ans: (a)
8. Largest part of the human brain is:
(a) Cerebellum
(b) Medulla oblongata
(c) Cerebrum
(d) Pons
Ans: (c)
9. The part controlling body balance is:
(a) Cerebrum
(b) Cerebellum
(c) Thalamus
(d) Hypothalamus
Ans: (b)
10. Involuntary activities are controlled by:
(a) Cerebellum
(b) Midbrain
(c) Medulla oblongata
(d) Cerebrum
Ans: (c)
11. Relay centre for sensory impulses is:
(a) Pons
(b) Hypothalamus
(c) Thalamus
(d) Cerebellum
Ans: (c)
12. Hunger and thirst are regulated by:
(a) Cerebrum
(b) Hypothalamus
(c) Midbrain
(d) Pons
Ans: (b)
13. Central nervous system includes:
(a) Brain and spinal cord
(b) Cranial nerves only
(c) Spinal nerves only
(d) Ganglia only
Ans: (a)
14. Peripheral nervous system consists of:
(a) Brain and cerebellum
(b) Brain and spinal cord
(c) Cranial and spinal nerves
(d) Thalamus and hypothalamus
Ans: (c)
15. Nodes of Ranvier are found in:
(a) Dendrites
(b) Cell body
(c) Myelinated axons
(d) Synapse
Ans: (c)
16. Saltatory conduction occurs in:
(a) Non-myelinated fibres
(b) Myelinated fibres
(c) Dendrites
(d) Cell body
Ans: (b)
17. The brain is protected by membranes called:
(a) Pleura
(b) Pericardium
(c) Meninges
(d) Peritoneum
Ans: (c)
18. The outer layer of cerebrum is called:
(a) Medulla
(b) Cortex
(c) Pons
(d) Hypothalamus
Ans: (b)
19. Number of cranial nerves in humans is:
(a) 10 pairs
(b) 12 pairs
(c) 31 pairs
(d) 24 pairs
Ans: (b)
20. Number of spinal nerves in humans is:
(a) 12 pairs
(b) 24 pairs
(c) 31 pairs
(d) 33 pairs
Ans: (c)
21. Afferent neurons are also called:
(a) Motor neurons
(b) Relay neurons
(c) Sensory neurons
(d) Connector neurons
Ans: (c)
22. Efferent neurons are also called:
(a) Sensory neurons
(b) Motor neurons
(c) Associative neurons
(d) Bipolar neurons
Ans: (b)
23. Which part connects forebrain and hindbrain?
(a) Cerebellum
(b) Midbrain
(c) Thalamus
(d) Medulla
Ans: (b)
24. The bridge-like structure of hindbrain is:
(a) Pons
(b) Cerebrum
(c) Hypothalamus
(d) Cortex
Ans: (a)
25. Neurotransmitters help in:
(a) Digestion
(b) Respiration
(c) Transmission of nerve impulses
(d) Blood clotting
Ans: (c)
26. Resting membrane is said to be:
(a) Depolarised
(b) Neutral
(c) Polarised
(d) Excited
Ans: (c)
27. Reversal of membrane polarity is called:
(a) Repolarisation
(b) Polarisation
(c) Depolarisation
(d) Osmosis
Ans: (c)
28. Which nervous system controls voluntary actions?
(a) Autonomic nervous system
(b) Somatic nervous system
(c) Sympathetic nervous system
(d) Parasympathetic nervous system
Ans: (b)
29. Which nervous system regulates involuntary activities?
(a) Somatic nervous system
(b) Central nervous system
(c) Autonomic nervous system
(d) Skeletal nervous system
Ans: (c)
30. The master clock of the brain is:
(a) Thalamus
(b) Cerebellum
(c) Hypothalamus
(d) Pons
Ans: (c)
