Question

When K+ leaves the cell through voltage-gated membranes this tranport is active or passive?

When K+ leaves the cell through voltage-gated membranes this tranport is active or passive?

Homework Answers

Answer #1

ANSWER :

When K+ leaves the cell through voltage-gated membranes this tranport is active...

EXPLANATION :

Potassium ions leave the cell through voltage-gated channels and repolarize the membrane.

The potassium ions exit, makes the membrane potential more negative.

As because of active transport of potassium ions, the concentration of K+ is higher inside cells than outside the cells.

Active transport is defined as the movement of molecules from low concentration to a region of their higher concentration with need of energy input.

Passive transport is defined as movement of ions without need of energy input.

When K+ leaves the cell through voltage-gated membranes is example of active transport. As sodium and potassium ions are pumped in opposite directions and build chemical and electrical gradient with need of energy input.

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