The net movement of molecules from a high concentration to a low concentration is BEST described by which of the following?

Question

Quizplus · Accepted Answer

Simple diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration, without the requirement of energy or a transport protein. This matches the description given in the question. Active transport, on the other hand, involves the movement of molecules against their concentration gradient, requiring energy and transport proteins. Osmosis is the movement of water across a semi-permeable membrane in response to differences in solute concentration. Facilitated diffusion involves the movement of molecules across a membrane with the assistance of a transport protein. Exocytosis is a process by which cells release materials to the extracellular environment. None of these other options match the description given in the question.

The Net Movement of Molecules from a High Concentration to a Low