Question

Neurotransmitter, at a synapse, is stored temporarily in ............

• A. synaptic vesicles
• B. synaptic cleft
• C. pre synaptic membrane
• D. post synaptic membrane

Hint:

Neurotransmitters are stored in synaptic vesicles in the presynaptic neuron before being released into the synaptic cleft.

Answer 1

The Correct Option is A

Step 1: Understanding neurotransmitter storage.
Neurotransmitters are stored in synaptic vesicles in the presynaptic neuron. These vesicles release neurotransmitters into the synaptic cleft when an action potential arrives.
Step 2: Analyzing the options.
(A) synaptic vesicles: Correct. Neurotransmitters are stored in synaptic vesicles before being released into the synaptic cleft.
(B) synaptic cleft: Incorrect. The synaptic cleft is the gap between neurons where neurotransmitters are released, but they are not stored there.
(C) pre synaptic membrane: Incorrect. Neurotransmitters are not stored in the membrane itself; they are stored in vesicles.
(D) post synaptic membrane: Incorrect. The post-synaptic membrane is where neurotransmitters bind, but they are not stored there.
Step 3: Conclusion.
The correct answer is (A) synaptic vesicles, as neurotransmitters are stored in these vesicles before release.