The resting membrane potential is the result of:
A) the unequal distribution of ions inside and outside of the cell
B) the unequal distribution of proteins inside and outside of the cell
C) the absence of sodium inside the cell
D) the absence of sodium outside the cell

Question

Quizplus · Accepted Answer

The resting membrane potential is due to the unequal distribution of ions, specifically potassium (K+) and sodium (Na+), across the cell membrane. The inside of the cell is negatively charged relative to the outside, with a resting potential of around -70 millivolts. This potential is maintained by the activity of ion channels and ion pumps in the cell membrane. The unequal distribution of proteins is not a major factor in generating the resting membrane potential, although some proteins can contribute to the electrical signaling of neurons. The absence of sodium inside or outside the cell would not be compatible with life, as sodium ions are essential for many cellular processes.

The Resting Membrane Potential Is the Result Of