NEET-Level MCQs (Hard)
Chapter: Neural Control and Coordination
1. Homeostasis is best defined as:
A. Coordination between muscles and bones
B. Maintenance of constant internal environment
C. Production of hormones by glands
D. Transmission of impulses through neurons
✅ Answer: B
Explanation:
Homeostasis means maintaining stable internal body conditions like temperature, pH, oxygen level, etc.
2. Which of the following systems provides point-to-point rapid coordination?
A. Endocrine system
B. Circulatory system
C. Neural system
D. Excretory system
✅ Answer: C
Explanation:
Neural system uses electrical impulses for fast and precise communication.
3. During physical exercise, increased oxygen demand directly causes:
A. Decrease in heartbeat
B. Reduced respiration rate
C. Increase in respiration rate
D. Kidney failure
✅ Answer: C
Explanation:
More oxygen is needed during exercise, so breathing rate increases.
4. Which statement is incorrect regarding endocrine coordination?
A. It involves hormones
B. Response is relatively slow
C. It provides electrical communication
D. Hormones travel through blood
✅ Answer: C
Explanation:
Electrical communication is a feature of nervous system, not endocrine system.
5. Structural and functional unit of neural system is:
A. Axon
B. Dendrite
C. Neuron
D. Synapse
✅ Answer: C
6. Which of the following correctly matches the system with its mode of coordination?
| System | Mode |
|---|---|
| A. Nervous system | Hormonal |
| B. Endocrine system | Electrical |
| C. Nervous system | Electrical impulses |
| D. Endocrine system | Synaptic transmission |
✅ Answer: C
7. Increased muscular activity during exercise first leads to:
A. Increased oxygen demand
B. Reduced blood flow
C. Decreased respiration
D. Decreased heartbeat
✅ Answer: A
8. Synapse is:
A. Covering of neuron
B. Junction between two neurons
C. Hormone-secreting gland
D. Functional unit of kidney
✅ Answer: B
9. Which of the following is common to both nervous and endocrine systems?
A. Both use hormones
B. Both transmit impulses
C. Both coordinate body activities
D. Both act only slowly
✅ Answer: C
10. Which organ system mainly helps in immediate response to stimuli?
A. Digestive system
B. Nervous system
C. Endocrine system
D. Reproductive system
✅ Answer: B
Assertion–Reason Questions
11. Assertion (A):
Nervous coordination is faster than endocrine coordination.
Reason (R):
Nervous system uses electrical impulses.
A. Both A and R are true and R is correct explanation
B. Both A and R are true but R is not correct explanation
C. A true, R false
D. A false, R true
✅ Answer: A
12. Assertion (A):
Hormones act very quickly compared to nerve impulses.
Reason (R):
Hormones travel through blood.
A. Both true
B. Both false
C. A true, R false
D. A false, R true
✅ Answer: D
Explanation:
Hormonal action is slower because hormones travel through blood.
Match the Following
13. Match Column I with Column II
| Column I | Column II |
|---|---|
| a. Neuron | 1. Chemical messenger |
| b. Hormone | 2. Junction between neurons |
| c. Synapse | 3. Structural unit of nervous system |
| d. Homeostasis | 4. Stable internal environment |
Options:
A. a-3, b-1, c-2, d-4
B. a-2, b-1, c-3, d-4
C. a-3, b-2, c-1, d-4
D. a-4, b-1, c-2, d-3
✅ Answer: A
Statement-Based MCQ
14. Which of the following statements are correct?
- Nervous system provides rapid coordination.
- Endocrine system works through hormones.
- Hormonal coordination is faster than nervous coordination.
- Synapse helps in impulse transmission.
A. 1, 2 and 4 only
B. 1 and 3 only
C. 2 and 3 only
D. All are correct
✅ Answer: A
Case-Based Question
15. A person suddenly touches a hot pan and immediately withdraws the hand. Which of the following is responsible for this quick response?
A. Hormonal coordination
B. Chemical coordination by blood
C. Nervous coordination through nerve impulses
D. Slow endocrine action
✅ Answer: C
Explanation:
Quick reflex action occurs due to rapid transmission of nerve impulses.
Very Hard NEET Conceptual MCQ
16. Which feature makes nervous coordination faster than endocrine coordination?
A. Hormones diffuse rapidly
B. Neurons are longer than glands
C. Electrical impulses travel rapidly through neurons
D. Blood transports signals instantly
✅ Answer: C
NCERT Line-Based MCQ
17. “The neural system provides an organised network of point-to-point connections.”
This statement implies:
A. Hormones travel through blood
B. Nervous coordination is precise and rapid
C. Neural system acts slowly
D. Endocrine glands are directly connected
✅ Answer: B
Higher Order Thinking Question
18. During exercise, respiration rate, heartbeat and blood flow increase simultaneously because:
A. Each organ works independently
B. Nervous and endocrine systems coordinate activities
C. Only endocrine system controls body
D. Kidneys control all organs
✅ Answer: B
Quick Revision One-Liners
- Neuron = structural and functional unit
- Synapse = junction between neurons
- Nervous system = fast coordination
- Endocrine system = chemical coordination
- Homeostasis = stable internal environment
- Hormones travel through blood
- Nerve impulses are electrical in nature
NEET Previous Year Questions (PYQs)
Chapter: Neural Control and Coordination
1. The nerve fibres which carry impulses from the central nervous system to the muscles are called:
A. Afferent nerve fibres
B. Sensory nerve fibres
C. Relay neurons
D. Efferent nerve fibres
✅ Answer: D
Explanation:
Efferent (motor) fibres carry impulses from CNS to effector organs like muscles and glands.
2. Saltatory conduction in myelinated nerve fibres occurs because:
A. Myelin sheath is discontinuous
B. Schwann cells are insulating
C. Membrane is depolarised at nodes only
D. Sodium pump operates only at nodes
✅ Answer: C
Explanation:
Depolarisation occurs only at Nodes of Ranvier, so impulse jumps node to node.
3. Which part of the neuron receives information?
A. Axon
B. Dendrite
C. Synaptic knob
D. Myelin sheath
✅ Answer: B
4. Resting membrane potential is due to:
A. Diffusion of potassium ions only
B. Equal distribution of ions
C. Difference in concentration of ions across membrane
D. Absence of protein channels
✅ Answer: C
5. The neurotransmitter released at neuromuscular junction is:
A. Dopamine
B. Thyroxine
C. Acetylcholine
D. Adrenaline
✅ Answer: C
6. The gap between two neurons is called:
A. Node
B. Synaptic cleft
C. Axolemma
D. Dendron
✅ Answer: B
7. Which ion is mainly responsible for depolarisation during nerve impulse conduction?
A. K⁺
B. Na⁺
C. Ca²⁺
D. Cl⁻
✅ Answer: B
8. In a reflex action, the reflex arc is formed by:
A. Receptors only
B. Receptors and muscles only
C. Receptors, CNS and effectors
D. Brain only
✅ Answer: C
9. Myelin sheath in peripheral nervous system is formed by:
A. Astrocytes
B. Oligodendrocytes
C. Schwann cells
D. Microglia
✅ Answer: C
10. Which part of brain regulates body temperature and hunger?
A. Cerebrum
B. Medulla oblongata
C. Hypothalamus
D. Cerebellum
✅ Answer: C
Assertion–Reason PYQ Style
11. Assertion (A):
Myelinated nerve fibres conduct impulses faster.
Reason (R):
Impulse jumps from one node of Ranvier to another.
A. Both A and R are true and R is correct explanation
B. Both true but R not correct explanation
C. A true, R false
D. A false, R true
✅ Answer: A
Match the Following PYQ
12. Match the following brain parts with functions:
| Brain Part | Function |
|---|---|
| a. Cerebellum | 1. Hunger regulation |
| b. Hypothalamus | 2. Vision |
| c. Occipital lobe | 3. Balance and posture |
| d. Medulla oblongata | 4. Respiratory control |
Options:
A. a-3, b-1, c-2, d-4
B. a-2, b-1, c-3, d-4
C. a-3, b-2, c-1, d-4
D. a-4, b-1, c-2, d-3
✅ Answer: A
NCERT-Based PYQ
13. Which statement is correct regarding nerve impulse transmission?
A. Inner membrane becomes negatively charged during depolarisation
B. Potassium ions enter neuron during depolarisation
C. Sodium ions enter neuron during depolarisation
D. Both sodium and potassium move outside neuron
✅ Answer: C
Diagram-Based PYQ Concept
14. Nodes of Ranvier are found in:
A. Non-myelinated nerve fibres only
B. Dendrites only
C. Gaps in myelin sheath
D. Synaptic terminals only
✅ Answer: C
Higher Order PYQ
15. If the sodium-potassium pump stops functioning, the neuron will:
A. Conduct impulses faster
B. Lose resting membrane potential
C. Produce excess neurotransmitters
D. Become hyperpolarised permanently
✅ Answer: B
Explanation:
Na⁺/K⁺ pump maintains resting potential. Without it, neuron cannot function properly.
Important PYQ Concepts for NEET
Must Learn Topics
- Resting membrane potential
- Depolarisation & repolarisation
- Saltatory conduction
- Synapse
- Reflex arc
- Brain functions
- Cranial nerves
- Autonomic nervous system
- Neurotransmitters
PYQ Quick Tricks
Sodium comes IN during depolarisation
→ “Na⁺ = प्रवेश”
Potassium goes OUT during repolarisation
→ “K⁺ = बाहर”
Myelin sheath
→ Faster conduction
Node of Ranvier
→ Jumping points of impulse
Acetylcholine
→ Common neurotransmitter at neuromuscular junction
Internal Links
Cell Structure and Function Notes
Chemical Coordination and Integration NEET Notes
Locomotion and Movement Notes
Breathing and Exchange of Gases Notes
Body Fluids and Circulation Notes
Excretory Products and Their Elimination Notes
Structural Organisation in Animals Notes
Biomolecules NEET Notes
Animal Kingdom Complete Revision
NEET Biology Full Mock Tests
NEET Mock Test
Topic: Neural Control and Coordination | 45 Questions
Reason (R): Impulse jumps from node to node.
Reason (R): It decreases heartbeat and blood pressure.
| Column I | Column II |
|---|---|
| a. Cerebellum | 1. Vision |
| b. Occipital lobe | 2. Hunger |
| c. Hypothalamus | 3. Balance |
| d. Medulla | 4. Respiration |
| Column I | Column II |
|---|---|
| a. Rods | 1. Colour vision |
| b. Cones | 2. Dim light |
| c. Cochlea | 3. Hearing |
| d. Vestibular apparatus | 4. Balance |
- Cerebrum is largest brain part
- Synaptic transmission is unidirectional
- Rods help in colour vision
- Medulla controls respiration
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