Active movement across a membrane usually involves
A) the hydrolysis of ADP.
B) channel-mediated transport.
C) movement down a concentration gradient.
D) movement against an electrochemical gradient.
E) movement along an electrochemical gradient.

Question

Quizplus · Accepted Answer

Active transport involves the movement of substances against their concentration or electrochemical gradients, which requires energy, typically in the form of ATP hydrolysis.

Active Movement Across a Membrane Usually Involves