Beginning at the Synapse of a Neuron, Place the Following

question 99

Multiple Choice

Beginning at the synapse of a neuron, place the following events in neuronal signaling in the correct sequence.
1) Ion channels bind the ligand and open.
2) Na⁺ is pumped out of the cell and the membrane potential is restored.
3) Acetylcholinesterase breaks down acetylcholine.
4) Na⁺ enters the postsynaptic cell and the membrane potential changes.
5) Acetylcholine is released into the synapse.
6) Na⁺ ion channels close.

• A)1, 2, 3, 4, 5, 6
• B)3, 4, 6, 1, 5, 2
• C)6, 4, 3, 1, 2, 5
• D)5, 1, 4, 3, 6, 2
• E)4, 5, 1, 2, 6, 3

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