One of the major uses of ATP in living organisms is the action of the Na+ and -
ID: 877766 • Letter: O
Question
One of the major uses of ATP in living organisms is the action of the Na+ and - K+ ATPase. What is the role of ATP in the action of this pump?
A. By ATPS hydrolysis, to drive the movement of sodium ions to the outside of cells, against the concentration gradient of sodium ions
B. By ATPs hydrolysis, to drive the movement of pottassium ions to the outside of cells, against the concentration gradient of pottassium ions.
C. By ATPs hydrolysis, to drive the movement of pottassium ions to the inside of the cells in the direction of the pottassium- ion gradient (from high to low concentration)
D. By ATPs hydrolysis, to move both sodium and pottassium ions outside of the cells
Explanation / Answer
A. By ATPS hydrolysis, to drive the movement of sodium ions to the outside of cells, against the concentration gradient of sodium ions
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