Since the membrane is more permeable to K⁺ than to Na⁺, A) there are always more positive ions outside the membrane than inside. B) there are always more negative ions outside the membrane than inside. C) the outside of the membrane is always negative. D) the outside of the membrane is always neutral. E) there really is never a resting potential.

Question

Quizplus · Accepted Answer

Since the membrane is more permeable to potassium ions (K+) than to sodium ions (Na+), more positive ions (K+) tend to move out of the cell than Na+ ions move in. This creates a situation where there are more positive ions outside the cell, leading to a net positive charge outside relative to the inside.

Since the Membrane Is More Permeable to K+ Than to Na+

Since the Membrane Is More Permeable to K⁺ Than to Na⁺