The resting membrane potential of a typical nerve cell is
A) +50 mV.
B) +70 mV.
C) 0 mV.
D) -50 mV.
E) -70 mV.

Question

Quizplus · Accepted Answer

The resting membrane potential of a typical nerve cell is the electrical charge difference across the cell membrane when the cell is at rest. The resting membrane potential for a typical nerve cell is approximately -70 mV, which means that the inside of the cell is 70 mV more negative than the outside. This negative charge is due to the accumulation of negatively charged ions, such as chloride (Cl-) and proteins, inside the cell and positively charged ions, such as sodium (Na+) and potassium (K+), outside the cell.

The Resting Membrane Potential of a Typical Nerve Cell Is