Which of the following statements about the Na+-K+ ATPase pump is false?
A. It binds to, and hydrolyzes, ATP.
B. It transports Na+ and K+ in a 1:1 ratio.
C. It is constantly active in all cells.
D. Its activity requires the expenditure of metabolic energy.
E. It transports Na+ out of cells and K+ into cells.
Answer: B
Anatomy & Physiology
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