Facilitated diffusion differs from passive diffusion in that facilitated diffusion is

Question

Quizplus · Accepted Answer

Facilitated diffusion involves the use of a protein carrier or channel to help molecules or ions move across the cell membrane. This is different from passive diffusion, which does not involve any protein assistance. Therefore, choice C is the best answer as it accurately describes the differences between facilitated and passive diffusion. Choice A and B are incorrect because facilitated diffusion can involve either a protein channel or carrier. Choice D is also incorrect because facilitated diffusion occurs down the concentration gradient, not against it.

Facilitated Diffusion Differs from Passive Diffusion in That Facilitated Diffusion