Question

When voltage-gated K+ channels of a resting neuron open,

A) K+ enters the neuron.
B) K+ leaves the neuron.
C) the neuron depolarizes.
D) A and C
E) B and C

Answer 1

When voltage-gated K+ channels of a resting neuron open, K+ leaves the neuron, and this is called repolarization.

Step-by-step explanation:

When voltage-gated K+ channels of a resting neuron open, K+ leaves the neuron. This process is called repolarization. It occurs after depolarization when Na+ channels open and Na+ enters the cell. The opening of K+ channels allows K+ ions to flow out of the cell, restoring the membrane potential to its resting state.