Which of the following statements about diffusion is true?
A) It is very rapid over long distances.
B) It requires an expenditure of energy by the cell.
C) It is an active process in which molecules move from a region of lower concentration to a region of higher concentration.
D) It is a passive process in which molecules move from a region of higher concentration to a region of lower concentration.

Question

Quizplus · Accepted Answer

Diffusion is a passive process and does not require energy expenditure by the cell. It occurs from a region of higher concentration to a region of lower concentration in order to reach equilibrium.

Which of the Following Statements About Diffusion Is True