Define filtration and active transportSolutionFiltration is

Define filtration and active transport.

Solution

Filtration is the movement of water and solute molecules down the concentration gradient, e.g. in the kidneys

Active Transport uses ATP to pump molecules AGAINST/UP the concentration gradient. Transport occurs from a low concentration of solute to high concentration of solute. Requires cellular energy. e.g. Endocytosis, cell membrane/sodium-potassium pump & exocytosis