Question

Sodium-potassium pump across the resting membrane transports ____ $Na$ ions outside and ____ $K$ ions into the cell.

• A. two, two
• B. two, four
• C. three, two
• D. two, three

Answer 1

The correct option is C three, two

The ionic concentration differences across the resting membrane are maintained by the active transport of ions by the sodium-potassium pump which transports $3N{a}^{+}$ ions outside the cell and $2K^{+}$ ions into the cell.