On the cell membrane the Na K pump transports in for every

On the cell membrane, the Na^+ K^+ pump transports ___ in for every ___ that it transports out. Select one: a. 3Na^+; 2K^+ b. 2Na^+; 3K^+ c. 3 K^+; 2 Na^+ d. 2K^+; 3Na^+

Solution

Answer is d. 2 K+ ; 3 Na +. ATP binding leads to the confirmati change of the pump and transport 3 Na ions to outside due to the lack of affinity after phosphorylation. Then the pump binds with 2 extra cellular K+ ions and dephosphorylate the pump and it changes the confirmation to the previous state.