What do the transport processes of facilitated diffusion and active transport have in common?
A)Water moves through an aquaporin in both processes.
B)Carrier proteins are used to transport materials in both processes.
C)Channel proteins are used to transport materials in both processes.
D)Vesicles are used to transport materials in both processes.
E)ATP is required for both processes to occur.

Question

Quizplus · Accepted Answer

Both facilitated diffusion and active transport use carrier proteins to transport materials across the cell membrane. However, active transport requires the expenditure of energy (usually in the form of ATP) to move materials against their concentration gradient, while facilitated diffusion moves materials down their concentration gradient without the input of energy. The other options listed do not apply to both processes.

What Do the Transport Processes of Facilitated Diffusion and Active