During depolarization
A)many potassium ions move outside the neuron.
B)sodium ions move inside the neuron.
C)electrons stream along the axon.
D)calcium ions move inside the neuron.

Question

Quizplus · Accepted Answer

Depolarization occurs when the membrane potential of a neuron becomes more positive, which is caused by an influx of positively charged ions. In this case, sodium ions move inside the neuron, which leads to depolarization. Option A is incorrect because during repolarization, potassium ions move outside the neuron. Option C is incorrect because neurons do not conduct electrons, they conduct ions. Option D is incorrect because calcium ions typically do not play a role in depolarization.

During Depolarization