An exoenzyme, or extracellular enzyme, is an enzyme that is secreted by a cell and functions outside of that cell. Exoenzymes are produced by both prokaryotic and eukaryotic cells and have been shown to be a crucial component of many biological processes. Most often these enzymes are involved in the breakdown of larger macromolecules. The breakdow...
Synonym for extracellular enzyme ... <enzyme> An enzyme performing its functions outside a cell; e.g., the various digestive enzyme's. ... Synonym: exoenzyme, lyoenzyme. ... (05 Mar 2000) ... 
(ek″so-en´zīm) an enzyme that acts outside the cell that secretes it.
(1) An enzyme attached to the outer surface of a cell (an ectoenzyme) or released from the cell into the extracellular space. (2) An enzyme that only cleaves the terminal residue from a polymer (in contrast to an endoenzyme).
Type: Term Pronunciation: ek′sō-en′zīm Synonyms: extracellular enzyme
secreted enzyme that enhances the ability of microorganisms to invade host cells
an enzyme, as pepsin, that functions outside the cell producing it. Also calledCf. endoenzyme.