Definitions for organelleˌɔr gəˈnɛl, ˈɔr gəˌnɛl
This page provides all possible meanings and translations of the word organelle
Random House Webster's College Dictionary
or•gan•elleˌɔr gəˈnɛl, ˈɔr gəˌnɛl(n.)
a specialized cell structure that has a specific function; a cell organ.
Category: Cell Biology
Origin of organelle:
1905; < NL organellaorgan
organelle, cell organelle, cell organ(noun)
a specialized part of a cell; analogous to an organ
"the first organelle to be identified was the nucleus"
A specialized structure found inside cells that carries out a specific life process (e.g. ribosomes, vacuoles).
In cell biology, an organelle is a specialized subunit within a cell that has a specific function, and it is usually separately enclosed within its own lipid bilayer. The name organelle comes from the idea that these structures are to cells what an organ is to the body. Organelles are identified by microscopy, and can also be purified by cell fractionation. There are many types of organelles, particularly in eukaryotic cells. While Prokaryotes do not possess organelles per se, some do contain protein-based microcompartments, which are thought to act as primitive organelles.
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