Question

During the repolarization phase of a neuron, the cell is brought back to the resting potential by the action of a Sodium-Potassium pump. Which one of the following statements is TRUE for the active transport of Na⁺ and K⁺ ions through the cell membrane ?

• A. For every 3 Na⁺ transported out of the cell 2 K⁺ is transported into the cell.
• B. For every 3 Na⁺ transported into the cell 2 K⁺ is transported out of the cell.
• C. For every 2 Na⁺ transported out of the cell 3 K⁺ is transported into the cell.
• D. The ratio of Na⁺ and K⁺ transport is always equal to one.

Answer 1

The Correct Option is A

The correct option is (A) : For every 3 Na⁺ transported out of the cell 2 K⁺ is transported into the cell..