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- Dictionaryac·tive trans·port/ˌaktiv ˈtran(t)sˌpôrt/
noun
- 1. the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
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Cellular transport mechanism
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement. There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transp... Wikipedia