When a neuron is in the resting potential state:
A) it is unable to activate.
B) it has a negative electrical charge of about 7 volts.
C) the fluid within the axon has a larger concentration of potassium ions than the fluid surrounding the axon.
D) the ion channels are open.

Question

Quizplus · Accepted Answer

During the resting potential state, the inside of the neuron has a negative charge relative to the outside, and this is maintained by the higher concentration of potassium ions inside the axon and sodium ions outside. Therefore, choice C is the only accurate statement. Choice A is incorrect because a neuron in resting potential can still activate if the appropriate stimulus is received. Choice B is incorrect because the electrical charge is typically around -70 millivolts, not 7 volts. Choice D is incorrect because ion channels are closed during the resting potential state.

When a Neuron Is in the Resting Potential State