Raising the potassium ion concentration in the extracellular fluid surrounding a nerve cell will have which effect?
A) depolarize it
B) hyperpolarize it
C) increase the magnitude of the potassium equilibrium potential
D) decrease the magnitude of the sodium equilibrium potential
E) increase the magnitude of the sodium equilibrium potential

Question

Quizplus · Accepted Answer

Increasing the extracellular potassium ion concentration reduces the concentration gradient for potassium across the cell membrane, leading to a less negative resting membrane potential, which depolarizes the nerve cell.

Raising the Potassium Ion Concentration in the Extracellular Fluid Surrounding