Which of the following processes can be used to bring nutrients into a cell against a concentration gradient?

Question

Quizplus · Accepted Answer

Active transport is the only process among the options listed that can move molecules against their concentration gradient (from an area of low concentration to an area of high concentration), requiring energy input typically derived from ATP hydrolysis. Facilitated diffusion moves molecules from areas of high concentration to areas of low concentration, so it cannot bring nutrients into a cell against a concentration gradient. Passive diffusion, unlike facilitated and active transport, does not require energy input, but it also cannot move molecules against their concentration gradient. Therefore, only active transport can bring nutrients into a cell against a concentration gradient.

Which of the Following Processes Can Be Used to Bring