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