Which statement about resting potential is true?
A) A resting membrane allows much more sodium than potassium to diffuse across it.
B) The concentration of sodium is much higher inside the cell than outside.
C) The resting potential exists because of differences in glucose concentration inside and outside the cell.
D) The sodium-potassium pump contributes to the resting membrane potential.

Question

Quizplus · Accepted Answer

The resting potential exists because of the unequal distribution of ions, specifically the higher concentration of potassium inside the cell and the higher concentration of sodium outside the cell. The sodium-potassium pump actively transports these ions against their concentration gradients, contributing to the maintenance of the resting potential. A resting membrane also allows more potassium than sodium to diffuse across it. Glucose concentration is not directly involved in the resting potential.

Which Statement About Resting Potential Is True