Understanding Action Potentials and Ion Channels

Practice Questions

GRE Subject Test: Biology › Understanding Action Potentials and Ion Channels

Questions
6
1

Which of the following compounds works by crossing the synaptic cleft and is involved in triggering contraction of muscles, stimulating the excretion of hormones, and exciting the nervous system?

2

Repolarization of the neuron is associated with what event in the action potential?

3

Which of the following events is correlated with the repolarization of the neuron?

4

Which of the following ions causes the release of neurotransmitters into the synaptic cleft?

5

Which of the following is true of action potentials in neurons?

6

Which of the following is most closely linked to neuron hyperpolarization?

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