______ trigger fusion of synaptic vesicles with the synaptic membranes of the presynaptic cell.This same stimulus also triggers ________.
A)Ca2+ ions,exocytosis
B)Ca2+ ions,endocytosis
C)acetylcholine,exocytosis
D)acetylcholine,endocytosis
E)Na+ ions,exocytosis

Question

Quizplus · Accepted Answer

Calcium ions are responsible for triggering the fusion of synaptic vesicles with the synaptic membranes of the presynaptic cell, leading to exocytosis of neurotransmitters into the synaptic cleft. Calcium ions are also involved in various other cellular processes, but in the context of synaptic transmission, their role is primarily associated with triggering exocytosis.

______ Trigger Fusion of Synaptic Vesicles with the Synaptic Membranes