Question

Predict what will happen as an impulse travels along the axon in the diagram below

• A. More potassium will move into the cell
• B. More sodium will move into the cell
• C. Both sodium and potassium will move out of the cell
• D. Sodium will move out of the cell

Answer 1

The correct option is A More potassium will move into the cell

When a nerve impulse passes through the axon, more potassium ions flow back into the cell and more sodium ions move out of the cell and this process is called as depolorization of the membrane.

So, the correct option is 'More potassium will move into the cell'.