Question

During transmission of nerve impulse the repolarisation occurs due to ___ of $K^{+}$ ions out of the cell.

• A. Passive movement
• B. Active transport
• C. Impulse waves

Answer 1

The correct option is B

Active transport

Repolarization typically results from the movement or active transport of positively charged $K^{+}$ ions out of the cell. During this phase there are too many ${Na}^{+}$ ions on the inside of the cell and too many $K^{+}$ on the outside of the cell.