The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
〔生〕主动转运，主动运输
Example sentencesExamples
Complex processes regulate both passive and active transport across the nuclear membrane.
Uric acid, formed from nucleic acids, is reabsorbed from filtrate by active transport, and a small portion is actively secreted into the urine.
The proximal tubule is the site of most secretion, reabsorption, and active transport.
The enzyme isoforms seem to have a tissue-specific expression, showing the highest expression levels in cells where intense active transport is expected to occur.
The electrocytes establish a charge difference across the cell membranes, presumably by active transport of ions.
Definition of active transport in US English:
active transport
noun
Biology
The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
〔生〕主动转运，主动运输
Example sentencesExamples
Complex processes regulate both passive and active transport across the nuclear membrane.
The enzyme isoforms seem to have a tissue-specific expression, showing the highest expression levels in cells where intense active transport is expected to occur.
The electrocytes establish a charge difference across the cell membranes, presumably by active transport of ions.
Uric acid, formed from nucleic acids, is reabsorbed from filtrate by active transport, and a small portion is actively secreted into the urine.
The proximal tubule is the site of most secretion, reabsorption, and active transport.