ATP Hydrolysis Directly Powers the Movement Of

Question

ATP hydrolysis directly powers the movement of
A) K⁺ out of cells.
B) Na⁺ out of cells.
C) Na⁺ into cells.
D) Ca⁺⁺ into cells.
E) Cl⁻ into cells.

Accepted Answer

ATP hydrolysis directly powers the movement of Na⁺ out of cells through the action of the Na⁺/K⁺-ATPase pump, which pumps Na⁺ out of the cell and K⁺ into the cell against their concentration gradients.