Which of these lists the events of an action potential in the correct order? A) Na ⁺ gates open→inside of axon becomes positive→Na ⁺ gates close→K ⁺ gates open→inside of axon becomes negative B) K ⁺ gates open→inside of axon becomes positive→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes negative C) K ⁺ gates open→inside of axon becomes negative→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes positive D) Na ⁺ gates open→inside of axon becomes negative→Na ⁺ gates close→K ⁺ gates open→inside of axon becomes positive E) Na ⁺ gates open→inside of axon becomes positive→K ⁺ gates close→Na ⁺ gates open→inside of axon becomes negative

Question

Quizplus · Accepted Answer

The correct sequence for an action potential involves sodium (Na+) channels opening first, leading to the inside of the axon becoming more positive due to the influx of Na+. This is followed by the closing of Na+ channels and the opening of potassium (K+) channels, allowing K+ to exit the cell and making the inside of the axon more negative, returning it towards its resting potential.

Which of These Lists the Events of an Action Potential