extracellularˌɛk strəˈsɛl yə lər
extracellular (adj)
English Definitions:
extracellular (adj)
located or occurring outside a cell or cells
"extracellular fluid"
extracellular (Adjective)
occurring or found outside of a cell
Extracellular
In cell biology, molecular biology and related fields, the word extracellular means "outside the cell". This space is usually taken to be outside the plasma membranes, and occupied by fluid. The term is used in contrast to intracellular. According to the Gene Ontology database the Extracellular Space is a Cellular Component defined as: "That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. Note that for multicellular organisms, the extracellular space refers to everything outside a cell, but still within the organism. Gene products from a multi-cellular organism are secreted from a cell into the interstitial fluid or blood can therefore be annotated to this term". The composition of the extracellular space includes metabolites, ions, various proteins and non-protein substances that might affect cellular function. For example, hormones, growth factors, cytokines and chemokines act by travelling the extracellular space towards biochemical receptors on cells. Other proteins that are active outside the cell are various enzymes, including digestive enzymes, extracellular proteinases and antioxidant enzymes. Often, proteins present in the extracellular space are stored outside the cells by attaching to various Extracellular matrix components. In addition, Extracellular matrix proteolytic products are also present in the extracellular space, especially in tissues undergoing remodelling [2].++
extracellular
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms. It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology, and Glossary of scientific naming, or any of the organism-specific glossaries in Category:Glossaries of biology.
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"extracellular." Kamus.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.kamus.net/english/extracellular>.
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