In the resting neuron, potassium is pushed
A) out of the cell by diffusion and into the cell by electrostatic pressure.
B) out of the cell by electrostatic pressure and into the cell by diffusion.
C) out of the cell by both electrostatic pressure and diffusion.
D) into the cell by both electrostatic pressure and diffusion.

Question

Quizplus · Accepted Answer

In a resting neuron, potassium ions (K+) are pushed out of the cell by diffusion due to a higher concentration of potassium inside the cell compared to the outside. They are pushed into the cell by electrostatic pressure because the inside of the cell is negatively charged relative to the outside, attracting the positively charged potassium ions back into the cell.

In the Resting Neuron, Potassium Is Pushed