Question:
Match the neurotransmitter in the first column with its effect in the second column.
Match the neurotransmitter in the first column with its effect in the second column.
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GABA inhibits neural activity, while acetylcholine excites muscle action and cognitive functions.
Updated On: Dec 24, 2025
- P-(iv), Q-(i), R-(ii), S-(iii)
- P-(iii), Q-(i), R-(ii), S-(v)
- P-(i), Q-(ii), R-(iv), S-(iii)
- P-(iv), Q-(i), R-(v), S-(iii)
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The Correct Option is A
Solution and Explanation
Step 1: Acetylcholine (P).
Acetylcholine is involved in muscle contraction at neuromuscular junctions and also plays a crucial role in learning and memory. Hence, P matches with (iv).
Step 2: Norepinephrine (Q).
Norepinephrine is primarily associated with alertness, arousal, and wakefulness, especially in the sympathetic nervous system. Thus, Q matches with (i).
Step 3: Serotonin (R).
Serotonin regulates mood, appetite, sleep, and emotional states. Therefore, R corresponds to (ii).
Step 4: GABA (S).
Gamma-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the brain, reducing neuronal excitability. Hence, S matches with (iii).
Step 5: Conclusion.
The correct matching sequence is P-(iv), Q-(i), R-(ii), and S-(iii), which corresponds to option (A).
Acetylcholine is involved in muscle contraction at neuromuscular junctions and also plays a crucial role in learning and memory. Hence, P matches with (iv).
Step 2: Norepinephrine (Q).
Norepinephrine is primarily associated with alertness, arousal, and wakefulness, especially in the sympathetic nervous system. Thus, Q matches with (i).
Step 3: Serotonin (R).
Serotonin regulates mood, appetite, sleep, and emotional states. Therefore, R corresponds to (ii).
Step 4: GABA (S).
Gamma-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the brain, reducing neuronal excitability. Hence, S matches with (iii).
Step 5: Conclusion.
The correct matching sequence is P-(iv), Q-(i), R-(ii), and S-(iii), which corresponds to option (A).
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