Water molecules enter cells by which of the following transport mechanisms?
A.
Proton pumps
B.
Electrochemical gradients
C.
Facilitated diffusion
D.
Gated channels
Water molecules enter cells primarily by:
C. Facilitated diffusion
Water typically moves across cell membranes through specialized channels called aquaporins, which facilitate the passive movement of water molecules via facilitated diffusion. This process does not require energy and follows the concentration gradient of water.