The inactivation gate A) quickly opens and closes after depolarization. B) is coupled to the movement of the activation gate, but is much slower. C) depends on a change of +100 mV from rest to be signaled to close. D) depends on a loss of Na⁺ permeability to be triggered. E) depends on a loss of K⁺ permeability to be triggered.

Question

Quizplus · Accepted Answer

The inactivation gate is coupled to the movement of the activation gate, but is much slower. This means that it follows the opening and closing of the activation gate but has a slower time course. The other choices are not accurate descriptions of the inactivation gate.

The Inactivation Gate