The falling phase of the action potential is due to which of these conditions
A)calcium equilibrium
B)potassium efflux
C)potassium influx
D)sodium efflux

Question

Quizplus · Accepted Answer

The falling phase of the action potential is due to the efflux of potassium ions from the cell. As the membrane potential becomes more positive during depolarization, potassium channels begin to open, allowing potassium ions to leave the cell. This causes the membrane potential to become more negative again as the positive potassium ions leave, leading to the repolarization or falling phase of the action potential.

The Falling Phase of the Action Potential Is Due to Which