When the neuron is at rest, which statement is True?
A) The activation gate is closed.
B) The inactivation gate is open.
C) No Na⁺ crosses the membrane is the only observation.
D) The activation gate is closed and the inactivation gate is open.
E) The activation gate is closed and no Na⁺ crosses the membrane.

Question

Quizplus · Accepted Answer

At rest, the activation gate of the sodium channel is closed, preventing Na⁺ from entering the neuron, and the inactivation gate is open, readying the channel for activation. This combination ensures that the neuron remains at its resting potential until a signal arrives.

When the Neuron Is at Rest, Which Statement Is True