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 potassium equilibrium potential
E) both A and D

Question

Quizplus · Accepted Answer

Raising extracellular potassium reduces the concentration gradient, leading to depolarization (A) and decreases the magnitude of the potassium equilibrium potential (D).

Raising the Potassium Ion Concentration in the Extracellular Fluid Surrounding