Active transport is the process of moving molecules across a cellular membrane through the use of cellular energy.
Active transport: moving against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport.
n. The movement of a chemical substance through a gradient of concentration or electrical potential in the direction opposite to normal diffusion, requiring the. Active transport is the movement of all types of molecules across a cell membrane against its concentration gradient. In all cells, this is usually concerned.
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. Electrochemical gradients and the membrane potential. Primary and secondary active transport. Na+/K+ pump. Active transport mechanisms require the use of the cell's energy, usually in the form of adenosine triphosphate (ATP). If a substance must move into the. The meaning of ACTIVE TRANSPORT is the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical.