Which statement about diffusion is correct?

Question

Quizplus · Accepted Answer

Diffusion is the movement of molecules or ions from an area of high concentration to an area of low concentration, until they reach equilibrium. Therefore, diffusion causes movement of materials toward equilibrium. Diffusion does not require a membrane or protein channel, although these structures can affect the rate or direction of diffusion. Diffusion of water is also possible and is called osmosis. Therefore, statements A, B, and C are incorrect.

Which Statement About Diffusion Is Correct