The following questions refer to comparative concentrations, permeabilities, and potentials under various circumstances. Indicate the relationship between the two items listed in each situation by following answer code.
-A. resting membrane potential in a typical nerve cell
B. equilibrium potential for K?
A)A is greater than B
B)B is greater than A
C)A and B are equal

Question

Quizplus · Accepted Answer

The equilibrium potential for K+ is more negative than the resting membrane potential in a typical nerve cell, which is around -70 mV. This is due to the fact that the resting membrane potential is influenced by other ions such as Na+ and Cl-, while the equilibrium potential for K+ is determined solely by the concentration gradient and membrane permeability of K+. Therefore, option B is correct as the equilibrium potential for K+ is more negative than the resting membrane potential.

The Following Questions Refer to Comparative Concentrations, Permeabilities, and Potentials