Two ATP Molecules Could Provide Energy for a Sodium-Potassium Pump

Multiple Choice

Two ATP molecules could provide energy for a sodium-potassium pump to move ____ ions out of the cell for every ____ ions it moves into the cell.

A) 6 Na^+; 3 K⁺
B) 2 Na⁺; 3 K⁺
C) 3 K⁺; 6 Na⁺
D) 3 K⁺; 2 Na⁺
E) 12 Na⁺; 6 K⁺