______influx triggers fusion of synaptic vesicles with the synaptic membranes of the presynaptic cell. This same stimulus also triggers __________, releasing neurotransmitters. A)Ca²⁺ ion, exocytosis B)Ca²⁺ ion, endocytosis C)acetylcholine molecules, exocytosis D)acetylcholine molecules, endocytosis E)Na⁺ ion, exocytosis

Question

Quizplus · Accepted Answer

Calcium influx triggers the fusion of synaptic vesicles with the synaptic membranes of the presynaptic cell (exocytosis), allowing neurotransmitters to be released into the synaptic cleft. The correct ions involved in the process are Ca2+ and the SNARE complex (made up of syntaxin-1, SNAP-25, and synaptobrevin/VAMP).

______Influx Triggers Fusion of Synaptic Vesicles with the Synaptic Membranes