When a neuron is at rest, which ion passes through its membrane most easily?
A) sodium
B) chloride
C) sulfate
D) potassium
E) proteins

Question

Quizplus · Accepted Answer

When the neuron is at rest, the ion that passes through its membrane most easily is potassium. This is because there are more potassium channels in the membrane that are open compared to sodium channels. Additionally, potassium ions have a higher concentration inside the neuron compared to outside, which creates a concentration gradient that favors the movement of potassium ions out of the neuron.

When a Neuron Is at Rest, Which Ion Passes Through