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.

Question

Quizplus · Accepted Answer

The sodium-potassium pump typically moves 3 Na⁺ ions out of the cell and 2 K⁺ ions into the cell per ATP molecule. Therefore, two ATP molecules would move 6 Na⁺ ions out and 4 K⁺ ions in, but the closest option is 6 Na⁺ out and 3 K⁺ in.

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