Extrusome

Source: Wikipedia, the free encyclopedia.

Extrusomes are membrane-bound structures in some eukaryotes which, under certain conditions, discharge their contents outside the cell. There are a variety of different types, probably not homologous, and serving various functions.

Notable extrusomes include mucocysts, which discharge a mucous mass sometimes used in cyst formation, and

Ancoracysta twista, a Provoran eukaryote, immobilises its prey using a type of extrusome named an ancoracyst.[2]

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