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In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body , hence organelle, the suffix -elle being a diminutive .
Light micrograph of a moss's leaf cells at 400X magnification. The following outline is provided as an overview of and topical guide to cell biology: . Cell biology – A branch of biology that includes study of cells regarding their physiological properties, structure, and function; the organelles they contain; interactions with their environment; and their life cycle, division, and death.
Components of a typical animal cell: Nucleolus; Nucleus; Ribosome (dots as part of 5) Vesicle; Rough endoplasmic reticulum; Golgi apparatus (or, Golgi body) Cytoskeleton; Smooth endoplasmic reticulum; Mitochondrion; Vacuole; Cytosol (fluid that contains organelles; with which, comprises cytoplasm) Lysosome; Centrosome; Cell membrane
Setting a value for any of the cell or organelle attributes will make its diagram visible; Any number and combination of diagram attributes may be set; When multiple diagrams are activated, the title is suppressed {
The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.
Organelles (literally "little organs") are usually membrane-bound structures inside the cell that have specific functions. Some major organelles that are suspended in the cytosol are the mitochondria , the endoplasmic reticulum , the Golgi apparatus , vacuoles , lysosomes , and in plant cells, chloroplasts .
In cell biology, the centrosome (Latin centrum 'center' + Greek sōma 'body') (archaically cytocentre [1]) is an organelle that serves as the main microtubule organizing center (MTOC) of the animal cell, as well as a regulator of cell-cycle progression. The centrosome provides structure for the cell.
There are numerous types of organelles with a wide variety of functions, including the various compartments of the endomembrane system (e.g. the nuclear envelope, endoplasmic reticulum, and Golgi apparatus), mitochondria, chloroplasts, lysosomes, endosomes, and vacuoles, among others. Many organelles are unique to particular cell types or species.