The electrochemical gradient that determines how a charged ion will move through a permeable membrane depends upon
A)the electrical forces acting on that ion.
B)the difference in concentration of that ion on either side of the membrane.
C)the ratio between the charge on the ion and its atomic mass.
D)the combined effects of electrical forces and concentration differences across the membrane.
E)All of the choices for this question are correct.

Question

Quizplus · Accepted Answer

The electrochemical gradient depends upon both the electrical forces (due to the charge of the ion) and the concentration differences across the membrane. Therefore, the correct answer is D - the combined effects of electrical forces and concentration differences across the membrane.

The Electrochemical Gradient That Determines How a Charged Ion Will