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Definition of active transport in English: active transportnoun mass nounBiology The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy. 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 transportnoun Biology The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy. 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.
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