Why does active transport require ATP?
A)An input of energy is needed to speed up the rate of facilitated diffusion.
B)An input of energy is needed to allow the movement of molecules from an area of low concentration to one of higher concentration.
C)An input of energy is needed to maintain the conformation of transport proteins.
D)An input of energy is needed to both speed up the rate of facilitated diffusion and maintain the conformation of transport proteins.

Question

Quizplus · Accepted Answer

Active transport requires the movement of molecules from an area of low concentration to one of higher concentration, which goes against the natural flow of diffusion. To achieve this, energy in the form of ATP is needed to power the transport proteins against this gradient.

Why Does Active Transport Require ATP