________ is the net movement of substances to regions of lower concentration.

Question

Quizplus · Accepted Answer

Diffusion is the net movement of substances from an area of higher concentration to an area of lower concentration. This can occur across cell membranes, such as in gas exchange in the lungs, or within a solution, such as the movement of molecules between compartments in a cell. Osmosis is a type of diffusion specific to the movement of water molecules. Active transport and facilitation both involve the movement of substances against their concentration gradient, from low concentration to high concentration, and require the use of energy.

________ Is the Net Movement of Substances to Regions of Lower