Which of the following statements is TRUE?
A) Water freely moves across cell membranes.
B) Water and electrolytes move across the cell membranes only through protein channels.
C) Electrolytes freely move across cell membranes.
D) Water and electrolytes cannot move across cell membranes.

Question

Quizplus · Accepted Answer

Water molecules are small and uncharged, allowing them to easily pass through the lipid bilayer of cell membranes via simple diffusion. However, the movement of electrolytes such as ions requires the help of specific protein channels or transporters.

Which of the Following Statements Is TRUE