Neural Tissue — NEET Biology MCQs with Solutions
Free NEET Biology Neural Tissue MCQs with step-by-step solutions (23 questions). Part of Structural Organisation in Animals. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Neural Tissue · easy · theory
The structural and functional unit of neural tissue is the:
A. Neuron ✓ Correct
B. Myofibril
C. Neuroglia
D. Nephron
Solution: Neurons are excitable cells that generate and transmit impulses; neuroglia support and protect them.
Q2 — Neural Tissue · easy · theory
Neuroglial cells in neural tissue function to:
A. Contract
B. Secrete hormones only
C. Support and protect neurons ✓ Correct
D. Conduct impulses like neurons
Solution: Neuroglia (more than half of neural tissue volume) support, insulate and nourish neurons.
Q3 — Neural Tissue · medium · theory
When a neuron is stimulated, an electrical disturbance is generated which:
A. Cannot be transmitted
B. Travels along the plasma membrane as a nerve impulse ✓ Correct
C. Is stored permanently
D. Causes muscle contraction directly without a synapse
Solution: A stimulus generates an impulse that propagates along the neuron's membrane and is passed on at synapses.
Q4 — Neural Tissue · medium · theory
The part of a neuron that receives signals and conducts them toward the cell body is the:
A. Dendrite ✓ Correct
B. Myelin sheath
C. Axon
D. Synaptic knob
Solution: Dendrites carry impulses toward the cell body; the axon carries them away.
Q5 — Neural Tissue · hard · theory
Neurons are described as "amitotic" and highly specialised because they:
A. Generally do not divide once mature and are specialised for conduction ✓ Correct
B. Store fat
C. Divide rapidly throughout life
D. Secrete a matrix
Solution: Mature neurons are usually amitotic (do not divide) and are highly specialised for receiving and transmitting impulses.
Q6 — Neural Tissue · hard · theory
Neural tissue exerts the greatest control over the body's responsiveness because it:
A. Stores energy
B. Forms the skeleton
C. Detects, receives and rapidly transmits stimuli, coordinating with muscles/glands ✓ Correct
D. Provides mechanical support only
Solution: Neural tissue senses changes and coordinates rapid responses, linking receptors to effectors (muscles/glands).
Q7 — Neural Tissue · easy · numerical
The part of a neuron that carries impulses away from the cell body towards another neuron or an effector is the:
A. Dendrite
B. Axon ✓ Correct
C. Cell body (cyton)
D. Nissl granule
Solution: The axon is the long fibre that conducts the nerve impulse away from the cyton to the next cell, whereas dendrites bring impulses toward the cell body.
Q8 — Neural Tissue · easy · numerical
Besides neurons, neural tissue contains supporting cells that protect and support the neurons. These cells are:
A. Osteocytes
B. Neuroglia (glial cells) ✓ Correct
C. Chondrocytes
D. Mast cells
Solution: Neuroglial cells make up more than half the volume of neural tissue and support, insulate and protect neurons; they do not conduct impulses.
Q9 — Neural Tissue · easy · numerical
When a neuron is suitably stimulated, the response generated in it is:
A. A contraction that shortens the fibre
B. An electrical disturbance (nerve impulse) that travels along the membrane ✓ Correct
C. The secretion of a hormone into the blood
D. The deposition of calcium in its matrix
Solution: Neurons are excitable cells; on stimulation they generate and propagate an electrical disturbance (nerve impulse) along the plasma membrane.
Q10 — Neural Tissue · medium · numerical
Assertion (A): Impulse conduction is faster in a myelinated nerve fibre than in a non-myelinated one. Reason (R): In myelinated fibres the impulse leaps from one node of Ranvier to the next (saltatory conduction). Choose the correct option.
A. Both A and R are true but R is not the correct explanation of A
B. A is true but R is false
C. Both A and R are true and R is the correct explanation of A ✓ Correct
D. A is false but R is true
Solution: Myelin insulates the axon so the impulse jumps between nodes of Ranvier (saltatory conduction), making conduction faster than in unmyelinated fibres; R explains A.
Q11 — Neural Tissue · medium · numerical
Which statement correctly distinguishes myelinated from non-myelinated nerve fibres?
A. Non-myelinated fibres have nodes of Ranvier but no Schwann cells
B. Myelinated fibres are enclosed by a myelin sheath with gaps called nodes of Ranvier, while non-myelinated fibres lack such gaps ✓ Correct
C. Myelinated fibres occur only in the autonomic nervous system
D. Non-myelinated fibres are enclosed by a thick myelin sheath and conduct faster
Solution: Myelinated fibres are wrapped in myelin interrupted by nodes of Ranvier; non-myelinated fibres are enclosed by Schwann cells but lack the myelin sheath and nodes.
Q12 — Neural Tissue · medium · numerical
Neurons are often called "amitotic" and are considered highly specialised chiefly because they:
A. Store large amounts of fat for insulation
B. Secrete a hard calcified matrix around themselves
C. Divide rapidly throughout life to replace worn tissue
D. Have generally lost the ability to divide once matured, yet excel at receiving stimuli and conducting impulses ✓ Correct
Solution: Mature neurons usually do not divide (amitotic) but are specialised to sense stimuli and transmit impulses rapidly, which underlies their control function.
Q13 — Neural Tissue · medium · numerical
Match the neuron part with its role: (i) Dendrite (ii) Axon (iii) Cyton — (p) contains the nucleus and Nissl granules (q) receives impulses and conducts them toward the cell body (r) conducts impulses away from the cell body. The correct match is:
A. (i)-q, (ii)-p, (iii)-r
B. (i)-r, (ii)-q, (iii)-p
C. (i)-q, (ii)-r, (iii)-p ✓ Correct
D. (i)-p, (ii)-q, (iii)-r
Solution: Dendrites receive and carry impulses toward the cyton, the axon carries impulses away, and the cyton (cell body) houses the nucleus and Nissl granules.
Q14 — Neural Tissue · medium · numerical
Neural tissue exerts the greatest control over the body's responsiveness to changing conditions mainly because it:
A. Secretes the fibres that hold the body together
B. Stores energy-rich fat that fuels all other tissues
C. Contracts to move the body from place to place
D. Rapidly senses stimuli and transmits signals that coordinate other tissues and organs ✓ Correct
Solution: Neural tissue is specialised to detect stimuli and swiftly conduct impulses, thereby coordinating the activities of the body's other tissues and organs.
Q15 — Neural Tissue · medium
Neuroglia are:
A. Excitable cells of neural tissue.
B. More than one half the volume of neural tissue in our body. ✓ Correct
C. Two to three times the volume of neural tissue in our body.
D. Protective and excitable cells of neural tissue.
Solution: Neuroglia are non-excitable supporting cells that make up more than half the volume of neural tissue.
Q16 — Neural Tissue · hard
A unipolar neuron is a microscopic structure composed of all the following parts except:
A. Axon
B. Cell body
C. None of these
D. Dendrites ✓ Correct
Solution: A unipolar neuron has a single process (axon) arising from the cell body and lacks true dendrites.
Q17 — Neural Tissue · hard
Which of the following statements is wrong? (1) Dendrites contain Nissl's granules. (2) Dendrites transmit impulse towards the cell body. (3) The proximal end of axon is branched. (4) Synaptic knob possesses synaptic vesicles containing neurotransmitters.
A. Dendrites contain Nissl's granules.
B. Synaptic knob possesses synaptic vesicles containing neurotransmitters.
C. Dendrites transmit impulse towards the cell body.
D. The proximal end of axon is branched. ✓ Correct
Solution: It is the distal end of the axon that is branched (ending in synaptic knobs), not the proximal end.
Q18 — Neural Tissue · medium
Which of the following is considered as the unit of the neural system?
A. Neuroglia
B. Dendron
C. Neurons ✓ Correct
D. Axon
Solution: The neuron is the structural and functional unit of the neural system.
Q19 — Neural Tissue · medium
The structural and functional unit of the nervous system is
A. neuroglia
B. oligodendrocyte
C. ganglia
D. neuron ✓ Correct
Solution: The neuron is the structural and functional unit of the nervous system.
Q20 — Neural Tissue · medium
The neurons in the neural system are protected by
A. dendrites
B. neuroglial cells ✓ Correct
C. Nissl's granules
D. axons
Solution: Neuroglial cells support and protect the neurons in the neural system.
Q21 — Neural Tissue · medium
How many statements are correct for neural tissue?
(i) Neurons, the unit of neural system are excitable cells.
(ii) The neuroglial cell which constitutes the rest of the neural system protects and supports neurons.
(iii) Neuroglia makes up more than one half the volume of neural tissue in our body.
(iv) When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane.
A. One
B. Four ✓ Correct
C. Three
D. Two
Solution: All four statements are correct as per NCERT description of neural tissue, so four statements are correct.
Q22 — Neural Tissue · medium
Assertion: Arrival of the disturbance at the neuron's endings, or output zone, triggers events that may cause stimulation or inhibition of adjacent neurons and other cells. Reason: When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane.
A. Assertion and reason both are wrong.
B. Assertion and reason both are true and the reason is correct explanation of assertion. ✓ Correct
C. Assertion and reason both are true but reason is not correct explanation of assertion.
D. Assertion is true but reason is wrong.
Solution: Both statements are true and are sequential in NCERT: the electrical disturbance generated and travelling along the membrane (R) is what arrives at the endings to trigger effects on adjacent cells (A), so R explains A.
Q23 — Neural Tissue · medium
Assertion: Neurons are excitable cells. Reason: Neurons are found abundantly throughout the body.
A. Both assertion and reason are true, and reason is the correct explanation of assertion.
B. Both assertion and reason are false.
C. Assertion is true, reason is false.
D. Both assertion and reason are true, but reason is not the correct explanation of assertion. ✓ Correct
Solution: Neurons are excitable cells (A true) and neural tissue is distributed throughout the body (R true), but excitability arises from membrane properties, not from abundance, so R does not explain A.