Which of the following is the correct sequence of events at a synapse?
(1)neurotransmitter release/diffusion
(2)generation of action potential in the postsynaptic cell membrane
(3)arrival of nerve impulse at an axon terminal in the 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 nerve impulse (action potential) arrives at the axon terminal in the presynaptic cell (3), which triggers the release of neurotransmitter molecules, which then diffuse across the synapse (1) and bind to receptors on the postsynaptic membrane (5). This binding generates an action potential in the postsynaptic cell membrane (2). Finally, neurotransmitter molecules are removed from receptors either by reuptake into the presynaptic terminal or by enzymatic degradation (4).

Which of the Following Is the Correct Sequence of Events