Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.
A) are always open, but the concentration gradients of ions frequently change
B) are always closed, but ions move closer to the channels during excitation
C) are open or closed depending on their type, and are specific as to which ion can traverse them
D) open in response to stimuli, and then close simultaneously, in unison

Question

Quizplus · Accepted Answer

Ion channels can be open or closed depending on their type, and each channel is specific as to which ion can traverse them. During resting conditions, some ion channels are closed, while others are open to maintain a resting potential.

Two Fundamental Concepts About the Ion Channels of a "Resting