What explanation can you give for why the sodium-potassium pump does not run out of ions to move in or out of the cell? A)Leak channels are always open,allowing the passage of sodium ions (Na⁺)and potassium ions (K⁺)across the membrane. B)The cell continuously produces more ions to replace those moved by the pump,maintaining a constant supply. C)Many of the ions moved in or out then diffuse passively back through the membrane in the opposite direction.

Question

Quizplus · Accepted Answer

If the pump was to continue unchecked there would be no sodium or potassium ions left to pump,but there are also leak channels for sodium and potassium ions in the membrane.The leak channels allow sodium ions to leak in and potassium ions to leak out,down their respective concentration gradients.

What Explanation Can You Give for Why the Sodium-Potassium Pump