The negative charge inside of the cell membrane is largely a product of the presence of negatively charged:
A) potassium ions.
B) sodium ions.
C) protein anions.
D) All of the answers are correct.

Question

Quizplus · Accepted Answer

The negative charge inside of the cell membrane is largely a product of the presence of protein anions, specifically large, negatively charged molecules such as nucleic acids and proteins that are located inside the cell. Potassium and sodium ions are important in establishing the membrane potential but they do not contribute significantly to the negative charge inside the cell membrane.

The Negative Charge Inside of the Cell Membrane Is Largely