During depolarization, ________ molecules rush into the axon; during repolarization, ________ molecules rush out of the axon.

Question

Quizplus · Accepted Answer

During depolarization, sodium ions rush into the axon through the open voltage-gated sodium channels. During repolarization, potassium ions rush out of the axon through the open voltage-gated potassium channels, restoring the negative charge inside the axon and returning it to its resting potential. Therefore, the correct answer is choice C, where sodium ions rush in during depolarization, and potassium ions rush out during repolarization.

During Depolarization, ________ Molecules Rush into the Axon; During Repolarization