Cell membranes can maintain a difference in electrical charge between the inte- rior of the cell and the extracellular fl uid. What is this charge difference called? A. excitability B. the membrane potential C. the action potential D. the sodium-potassium pump
Option B.The interior of a cell is negative the exterior side of the mem- brane is positive. This difference in charge constitutes a distinction in electrical potential (or voltage), regarded as the resting membrane potential. An motion potential is generated when the membrane is inspired and the plausible reversed.