Which of These Substances Could Be Driven Across a Membrane

Question

Which of these substances could be driven across a membrane by the resting membrane potential?
A) H2O
B) O2
C) glucose
D) Na+
E) CO2

Accepted Answer

Na+ could be driven across the membrane by the resting membrane potential as it moves from an area of higher concentration (extracellular fluid) to an area of lower concentration (intracellular fluid) due to the negative charge of the cell's interior. The other substances listed are not charged, so they would not be affected by the resting membrane potential.