When the neuron is at rest, what is primarily responsible for moving potassium ions OUT of the cell?

At rest, the sodium-potassium pumps pump the two potassium ions into the cell for three Na ions moved out of the cell. This creates a higher potassium concentration gradient inside the cell. This concentration gradient moves the K+ out of the cell. Movement of positively charged K+ out of the cells make the inside of the membrane negative with respect to the outside. This is how the negative resting potential is maintained when neurons are nor firing the action potential.

Histrionicus Histrionicus · Answer 2 · 2021-12-07T10:20:56+01:00

When the neuron is at rest, the primarily responsible for moving potassium ions OUT of the cell - concentration gradient

Neuron

Is the main component of nervous tissue in the nervous system as it sends signals by electro-chemical signaling.

A neuron at rest is negatively charged within the cell is created by the cell membrane being more permeable to potassium ion movement than sodium ion movement.
At rest, there is a high concentration of potassium ions (K+) inside the cell compared to the extracellular fluid due to a net movement with the concentration gradient.
A High number of potassium ions reside inside the cell, a chemical gradient occurs and pushes potassium out of the cell.

Thus, When the neuron is at rest, the primarily responsible for moving potassium ions OUT of the cell - concentration gradient

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