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active transport

Line breaks: ac¦tive trans|port

Definition of active transport in English:

noun

[mass noun] Biology
The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Example sentences
  • Complex processes regulate both passive and active transport across the nuclear membrane.
  • The electrocytes establish a charge difference across the cell membranes, presumably by active transport of ions.
  • 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.

Definition of active transport in:

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