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exocytosis Line breaks: exo|cyt¦osis
Pronunciation: /ˌɛksəʊsʌɪˈtəʊsɪs/

Definition of exocytosis in English:


[mass noun] Biology
A process by which the contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane.
Example sentences
  • Membrane fusion is a key event in many essential cell processes, such as exocytosis, endocytosis, membrane recycling, protein sorting and transport, fertilization, and cell division.
  • In the studies cited, only the intensity of fluorescence was used to observe the metabolism, exocytosis and phagocytosis of cells.
  • Planar-supported membranes provide an interesting and very useful new approach to study the complex molecular machinery of exocytosis and membrane fusion.


Pronunciation: /ˌɛksəʊsʌɪˈtɒtɪk/
Example sentences
  • Release of neurotransmitters and hormones from cells involves exocytotic fusion of secretory vesicles with the plasma membrane.
  • In addition to factors regulating the fusion of exocytotic vesicles with the plasma membrane, postfusion events have attracted broad scientific interest.
  • Can similar conformational transitions occur in vivo, for example, during exocytotic swelling of secretory granules or in a stretched fibronectin matrix?
Definition of exocytosis in:
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