During the absolute refractory period,what is the state of the gates of the sodium channel?
A)Both activation and inactivation gates are closed.
B)Both activation and inactivation gates are open.
C)The activation gate is open and the inactivation gate is closed.
D)The activation gate is closed and the inactivation gate is open.

Question

Quizplus · Accepted Answer

During the absolute refractory period, the activation gate of the sodium channel is open, allowing for the influx of sodium ions into the cell. However, the inactivation gate is closed, preventing any further influx of sodium ions. This is why the cell cannot respond to additional stimuli during the absolute refractory period. Therefore, choice C is the best answer as it correctly states that the activation gate is open and the inactivation gate is closed.

During the Absolute Refractory Period,what Is the State of the Gates