Which of the following molecules dramatically increases the rate of diffusion of water across cell membranes?
A) the sodium-potassium pump
B) aquaporins
C) gated ion channels
D) ATP

Question

Quizplus · Accepted Answer

Aquaporins are protein channels that increase the rate of water diffusion across cell membranes by providing a pathway for water molecules to move through the lipid bilayer. The other choices do not directly impact the rate of water diffusion. The sodium-potassium pump and ATP are involved in active transport, while gated ion channels allow for the selective passage of ions.

Which of the Following Molecules Dramatically Increases the Rate of Diffusion