The opening of a cation channel that allows both Na⁺and K⁺to move through will cause the membrane to because of the _. A) depolarize : greater K⁺electrochemical gradient as compared with Na⁺ B) hyperpolarize : greater K⁺electrochemical gradient as compared with Na⁺ C) depolarize : greater Na⁺electrochemical gradient as compared with K⁺ D) not change : same electrochemical gradient for K⁺and Na⁺ E) hyperpolarize : greater Na⁺electrochemical gradient as compared with K⁺

Question

Quizplus · Accepted Answer

The opening of a cation channel that allows both Na+ and K+ to move through will cause the membrane to depolarize primarily because of the greater Na+ electrochemical gradient compared with K+. Na+ tends to enter the cell due to its higher concentration outside the cell, leading to depolarization.

The Opening of a Cation Channel That Allows Both Na+

The Opening of a Cation Channel That Allows Both Na⁺