What is the correct sequence of events at a synapse
(1)neurotransmitter release/diffusion
(2)generation of action potential in the postsynaptic cell axon
(3)arrival of nerve impulse at synaptic knob in presynaptic cell
(4)removal of neurotransmitter molecules from receptors
(5)binding of neurotransmitter to receptors
A)2, 3, 1, 5, 4
B)3, 1, 5, 2, 4
C)3, 1, 5, 4, 2
D)2, 3, 1, 4, 5
E)1, 5, 4, 2, 3

Question

Quizplus · Accepted Answer

The correct sequence of events at a synapse is as follows:
1) Arrival of nerve impulse at synaptic knob in presynaptic cell (3)
2) Neurotransmitter release/diffusion (1)
3) Binding of neurotransmitter to receptors (5)
4) Generation of action potential in the postsynaptic cell axon (2)
5) Removal of neurotransmitter molecules from receptors (4)
Therefore, the correct order is 3, 1, 5, 2, 4, which corresponds to choice B.

What Is the Correct Sequence of Events at a Synapse