Which of the following cellular transport processes requires the greatest expenditure of cellular energy?
A) diffusion
B) osmosis
C) active transport
D) dialysis
E) passive transport

Question

Quizplus · Accepted Answer

Active transport requires the use of ATP (cellular energy) to move molecules against their concentration gradient, which is the opposite direction of where they naturally want to flow. This is in contrast to passive transport processes such as diffusion and osmosis, which do not require energy input. Dialysis, while involving the movement of molecules across a membrane, is a specific lab technique that doesn't necessarily correspond to a cellular transport process.

Which of the Following Cellular Transport Processes Requires the Greatest