Study Biology

Question 37

(Multiple Choice)

The following steps refer to various stages in transmission at a chemical synapse.
1)Neurotransmitter binds with receptors associated with the postsynaptic membrane.
2)Calcium ions rush into neuron's cytoplasm.
3)An action potential depolarizes the membrane of the axon terminal.
4)The ligand-gated ion channels open.
5)The synaptic vesicles release neurotransmitter into the synaptic cleft.
Which sequence of events is correct?


A) 1 → 2 → 3 → 4 → 5
B) 2 → 3 → 5 → 4 → 1
C) 3 → 2 → 5 → 1 → 4
D) 4 → 3 → 1 → 2 → 5
E) 5 → 1 → 2 → 4 → 3

Answer

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