MCQ – 74792

Which of the following is the marked structure in the below picture?

A.	Neurotransmitter
B.	Synaptic vesicles
C.	Microtubule
D.	Collagen fibril

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Correct Answer � B Explanation

Ans. b. Synaptic vesicles

Ref: Z. Taoufiq, OIST 2013

• An ultramicroscopic image shows an isolated synapse from a brain sample before mass spectrometry analyses.
• The pre-synapse typically shows many vesicles containing neurotransmitters kept attached to the post-synapse.