Which type of absorption requires the use of a carrier protein but not energy?

Question

Quizplus · Accepted Answer

Facilitated diffusion requires a carrier protein to help molecules move across the cell membrane, but it does not require energy. Passive diffusion, on the other hand, does not require a carrier protein but also does not require energy. Active transport requires both a carrier protein and energy. Endocytosis involves the cell taking in large molecules or particles by engulfing them, which is a completely different process from absorption through the cell membrane.

Which Type of Absorption Requires the Use of a Carrier