In order to trigger the release of neurotransmitter from a neuron terminal, calcium ions
A) exit the synaptic knob through diffusion.
B) bind to proteins on the surface of synaptic vesicles.
C) penetrate the synaptic vesicles and bind to molecules of neurotransmitter.
D) bind to ion channels on the neuron membrane and cause them to open for the transmitter.

Question

Quizplus · Accepted Answer

Calcium ions bind to proteins on the surface of synaptic vesicles, which triggers the vesicles to fuse with the presynaptic membrane and release neurotransmitters into the synaptic cleft.

In Order to Trigger the Release of Neurotransmitter from a Neuron