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The bulb at the tip of an axon branch holding neurotransmitter vesicles is the:
ANode of Ranvier
BNissl granule
CSchwann cell
DSynaptic knob
Answer & Solution
Correct answer: D. Synaptic knob
1. Each axon branch ends in a bulb-like swelling.
2. It stores vesicles of neurotransmitter.
3. It is the synaptic knob.
_Source: NCERT Class 11 Biology, Chapter 21, Neural Control and Coordination._
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