Because of the presence of both activation and inactivation gates, voltage-gated Na⁺ channels can
A)be closed but capable of opening
B)be activated
C)be closed and not capable of opening
D)exhibit all of the above events
E)exhibit only the a and b events

Question

Quizplus · Accepted Answer

Voltage-gated Na⁺ channels can be closed but capable of opening when both activation and inactivation gates are closed, they can be activated when both gates are open, and they can be closed and not capable of opening when the inactivation gate is closed while the activation gate is open. Therefore, they can exhibit all of the events mentioned in the options.

Because of the Presence of Both Activation and Inactivation Gates