Question

during depolarization, which of the following statements about voltage - gated ion channels is true? multiple choice k+ gates open before na+ gates. na+ gates open before k+ gates. na+ and k+ gates open at the same time. k+ gates open while na+ gates remain closed.

Explanation:

During depolarization of a neuron, voltage - gated sodium ($Na^+$) channels open first, allowing sodium ions to rush into the cell and cause the membrane potential to become more positive. Then, voltage - gated potassium ($K^+$) channels open later.

Answer:

Na⁺ gates open before K⁺ gates.