The process you are referring to is called active transport. Active transport is the movement of molecules or ions across a cell membrane against their concentration gradient, which means they move from an area of lower concentration to an area of higher concentration. Unlike passive transport, which occurs spontaneously and does not require energy, active transport requires the input of energy to move substances against their concentration gradient.
The process you are referring to is called active transport. Active transport is the movement of molecules or ions against their concentration gradient, which requires the input of energy in the form of ATP (adenosine triphosphate). It is performed by specific transport proteins embedded in the cell membrane. This process enables cells to accumulate molecules or ions to higher concentrations than their surrounding environment.
