Question

4 which of the following statements about the na+-k+ atpase pump is false? multiple choice it transports na+ out of cells and k+ into cells. it binds to, and hydrolyzes, atp. it is constantly active in all cells. its activity requires the expenditure of metabolic energy it transports na+ and k+ in a 1:1 ratio.

Explanation:

The Na⁺ - K⁺ ATPase pump transports 3 Na⁺ out of the cell and 2 K⁺ into the cell, not in a 1:1 ratio. It binds and hydrolyzes ATP, expending metabolic energy, and is active in most cells to maintain ion - gradients.

Answer:

It transports Na⁺ and K⁺ in a 1:1 ratio.