Active processes .
A) include osmosis
B) move substances against (up) a concentration and/or electrical gradient
C) require a hydrostatic pressure gradient
D) move fats and respiratory gases through cell membranes

Question

Quizplus · Accepted Answer

Active processes involve the movement of substances against their concentration or electrical gradient, which requires energy, typically in the form of ATP. Osmosis (A) is a passive process where water moves across a membrane down its concentration gradient. A hydrostatic pressure gradient (C) can drive filtration, a passive process, not active transport. While fats and respiratory gases do move through cell membranes, their movement by simple diffusion or facilitated diffusion does not require energy, thus not classifying as active processes (D).

Active Processes