Which of the following is a similarity between the diffusion of sodium ions and

Question

Which of the following is a similarity between the diffusion of sodium ions and the diffusion of calcium ions? Both diffuse out of cells to cause the insides of the cells to become more positive (depolarize). Both diffuse into cells to cause the insides of the cells to become more positive (depolarize) Both diffuse out of cells to cause the insides of the cells to become more negative (hyperpolarize) Both diffuse into cells to cause the insides of the cells to become more negative (hyperpolarize).

Explanation / Answer

(Option-1)In depolarization, positive ions flow into the cell cause depolarization. So both diffuse out of cells to cause the insides of the cells to become more positive is not possible.

(Option-2)-In depolarization, the opening of the channel that let positive ions flow into the cell cause depolarization. Hence opening of the channel in action potential that let sodium ion into the cell.

(Option-3)In hyperpolarization, the opening of channels that let positive ion flow out of the cell cause hyperpolarization. An opening of channels let potassium ion out and let chloride ion into the cell so there is no role of sodium and calcium.

(Option-4)Both sodium and calcium diffuse into the cells to cause the insides of the cells to become more negative are not possible, in hyperpolarization.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.