Which of the Following Is True of an Action Potential

Multiple Choice

Which of the following is true of an action potential?

A) The sodium channels are opened at a lower voltage than are potassium channels.
B) An action potential requires 5 msec for completion.
C) During an action potential, the interior becomes even more negative.
D) The potassium channels are opened at a lower voltage than are sodium channels.
E) The overshoot is due to a prolonged change in sodium conductance.