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The concentration of potassium is higher in red
blood cells than in the surrounding blood plasma.
This higher concentration is maintained by the
process of
(1) circulation (3) excretion
(2) diffusion (4) active transport



Answer :

kimeto3
(4) active transport
Active transport is the movement of molecules across a cell membrane in the direction against their concentration gradient, i.e. moving from an area of lower concentration to an area of higher concentration.

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