Question

multiple choice question
soon after depolarization, voltage - sensitive potassium channels open and potassium diffuses out causing the membrane to:
repolanize
hyperpolarize
depolarize

Explanation:

When voltage - sensitive potassium channels open after depolarization and potassium diffuses out, the inside of the cell becomes more negative relative to the outside. Repolarization is the process of the membrane potential returning towards the resting potential after depolarization. Potassium efflux helps in this return to the resting state. Hyperpolarization occurs when the membrane potential becomes more negative than the resting potential, which is not the immediate result here. Depolarization is the initial event that preceded the opening of potassium channels.

Answer:

A. repolarize