If a membrane is depolarized to +10 mV, which cation will move more frequently through a small cation channel?
A) potassium
B) sodium
C) calcium
D) hydrogen
E) magnesium

Question

Quizplus · Accepted Answer

Potassium (K+) ions will move more frequently through a small cation channel when a membrane is depolarized to +10 mV because the resting membrane potential is usually closer to the equilibrium potential of potassium than that of other cations listed, making potassium ions more responsive to changes in membrane potential.

If a Membrane Is Depolarized to +10 MV, Which Cation