Facilitated diffusion is an important method for cells in obtaining necessary molecules and removing other ones.Requirements for facilitated diffusion include which of the following?

Question

Quizplus · Accepted Answer

Facilitated diffusion requires a carrier molecule that is specific to the molecule being transported, meaning it can only transport certain molecules. Additionally, the movement always occurs with the concentration gradient, from high concentration to low concentration, and does not require an input of energy like ATP. Option B is incorrect because the carrier molecule is specific, not nonspecific. Option C is incorrect because the movement is always with the concentration gradient, not against it. Option D is incorrect because ATP is not required for facilitated diffusion, and the movement is with the concentration gradient, not against it.

Facilitated Diffusion Is an Important Method for Cells in Obtaining