Question

Diffusion of K^+ out of the cell makes the inside of it less positive, or more negative and acts to restore the original resting membrane potential. This process is called ____________

(a) Repolarization

(b) Depolarization

(c) Hyperpolarization

(d) Overshoot

I had been asked this question by my college professor while I was bunking the class.

This question is from Gated Ion Channels topic in section Biosignalling of Biochemistry

Answer 1

Right answer is (a) Repolarization

The explanation is: Diffusion of K^+ out of the cell makes the inside of it less positive, or more negative and acts to restore the original resting membrane potential. This process is called repolarization.