?

AP® Psychology

Free Version

Upgrade subject to access all content

Difficult

Action Potential

APPSY-FYXEDN

Which of the following statements is NOT true about a neuron that has reached its action potential?

A

Sodium and potassium ion channels allow transfer across the cell membrane.

B

Depolarization of the cell membrane occurs.

C

At the axon terminal, vesicles containing neurotransmitter molecule begin to release their contents.

D

An electro-chemical impulse is conducted down the axon.

E

Sodium and potassium ion channels are blocked to prevent polarization of the membrane.