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mitochondrionenUK
 mitochondrionmi·to·chon·dri·on M0351100 (mī′tə-kŏn′drē-ən)n. pl. mi·to·chon·dri·a (-drē-ə) A spherical or elongated organelle in the cytoplasm of nearly all eukaryotic cells, containing genetic material and many enzymes important for cell metabolism, including those responsible for the conversion of food to usable energy.
[New Latin : Greek mitos, warp thread + Greek khondrion, diminutive of khondros, grain, granule; see ghrendh- in Indo-European roots.]
mi′to·chon′dri·al (-drē-əl) adj.mitochondrion (ˌmaɪtəʊˈkɒndrɪən) n, pl -dria (-drɪə) (Biology) a small spherical or rodlike body, bounded by a double membrane, in the cytoplasm of most cells: contains enzymes responsible for energy production. Also called: chondriosome [C19: New Latin, from Greek mitos thread + khondrion small grain] ˌmitoˈchondrial adjmi•to•chon•dri•on (ˌmaɪ təˈkɒn dri ən)
n., pl. -dri•a (-dri ə) an organelle in the cell cytoplasm that has its own DNA, inherited solely from the maternal line, and that produces enzymes essential for energy metabolism. Abbr.: mt See diag. at cell. [1900–05; < Greek míto(s) thread + chóndrion small grain] mi`to•chon′dri•al, adj. ![]() mitochondrionmi·to·chon·dri·on (mī′tə-kŏn′drē-ən) Plural mitochondria A structure in the cytoplasm of all cells except bacteria in which food molecules are broken down in the presence of oxygen and converted to energy in the form of ATP. Mitochondria contain their own DNA. See more at cell.mitochondrion(pl. mitochondria) A rod-shaped organelle inside a cell that is a site of energy release.Thesaurus| Noun | 1. |  mitochondrion - an organelle containing enzymes responsible for producing energychondriosomesarcosome - a large mitochondrion in a striated muscle fibercell organ, cell organelle, organelle - a specialized part of a cell; analogous to an organ; "the first organelle to be identified was the nucleus" |
TranslationsmitochondrionenUK
mitochondrion a small spherical or rodlike body, bounded by a double membrane, in the cytoplasm of most cells: contains enzymes responsible for energy production mitochondrionenUK
mitochondrion [mi″to-kon´dre-ah] (pl. mitochon´dria) (Gr.) a small, spherical to rod-shaped, membrane-bounded cytoplasmic organelle, the principal sites of ATP synthesis; mitochondria also contain enzymes of the cycle" >citric acid cycle and ones for fatty acid oxidation, phosphorylation" >oxidative phosphorylation, and other biochemical pathways. They also contain DNA, RNA, and ribosomes; they replicate independently and synthesize some of their own proteins. adj., adj mitochon´drial. Mitochondrion. This organelle has a double membrane that unfolds and forms cristae. The membrane and cristae serve as attachment sites for oxidative enzymes. From Damjanov, 2000.mi·to·chon·dri·on, pl. mi·to·chon·dri·a (mī'tō-kon'drē-on, mī'to-kon'drē-ă), An organelle of the cell cytoplasm consisting of two sets of membranes, a smooth continuous outer coat and an inner membrane arranged in tubules or more often in folds that form platelike double membranes called cristae; mitochondria are the principal energy source of the cell and contain the cytochrome enzymes of terminal electron transport and the enzymes of the citric acid cycle, fatty acid oxidation, and oxidative phosphorylation. Synonym(s): Altmann granule (2) [G. mitos, thread, + chondros, granule, grits] mitochondrion (mī′tə-kŏn′drē-ən)n. pl. mitochon·dria (-drē-ə) A spherical or elongated organelle in the cytoplasm of nearly all eukaryotic cells, containing genetic material and many enzymes important for cell metabolism, including those responsible for the conversion of food to usable energy.
mi′to·chon′dri·al (-drē-əl) adj.mi·to·chon·dri·on, pl. mitochondria (mī'tō-kon'drē-ŏn, -ă) An organelle of the cell cytoplasm consisting of two sets of membranes, a smooth continuous outer coat and an inner membrane arranged in tubules or moreoften in folds that form platelike double membranes called cristae; mitochondria are the principal energy source of the cell and contain the cytochrome enzymes of terminal electron transport and the enzymes of the citric acid cycle, fatty acid oxidation, and oxidative phosphorylation. [G. mitos, thread, + chondros, granule, grits]mitochondrion (pl. mitochondria) a subcellular, cylindrical organelle found in EUKARYOTES, of about 0.2–0.5 μm in length. Under the ELECTRON MICROSCOPE, the mitochondrion is seen to consist of a double membrane surrounding a matrix, with the inner membrane folded into projections called CRISTAE. The walls of the cristae are the site of ELECTRON TRANSPORT SYSTEMS producing ATP, while the reactions of the KREBS CYCLE take place within the matrix. Mitochondria have thus been named the ‘powerhouses’ of the cell and are especially prevalent in cells with a high energy requirement. Mitochondria are selfreplicating and contain DNA by which they can control the synthesis of some of their own proteins.Altmann, Richard, German histologist, 1852-1900. Altmann anilin-acid fuchsin stain - a mixture of picric acid, anilin, and acid fuchsin which stains mitochondria crimson against a yellow background.Altmann fixative - a bichromate-osmic acid fixative.Altmann-Gersh method - the method of rapidly freezing a tissue and dehydrating it in a vacuum.Altmann granule - a granule that has an affinity for fuchsin. Synonym(s): fuchsinophil granule; mitochondrionAltmann theory - a theory that protoplasm consists of granular particles that are clustered and enclosed in indifferent matter.mitochondrionAn organelle in the cytoplasm of cells, which produces most of the energy-rich molecule adenosine triphosphate (ATP) in cells. It is produced by using oxygen to break down nutrient molecules (e.g. glucose). The number of mitochondria in a cell varies, it is greater in active cells, such as muscle and liver cells which need more ATP. Mitochondria are involved in other processes (e.g. apoptosis, cellular proliferation). Each mitochondrion contains DNA, RNA, ribosomes and granules. The DNA is distinct from that of the cell nucleus. Mitochondrial DNA is inherited only through the female. Mutations in mitochondrial DNA causes genetic disorders (e.g. Leber's hereditary optic atrophy). Plural: mitochondria.mitochondrionenUK
Related to mitochondrion: lysosomeSynonyms for mitochondrionnoun an organelle containing enzymes responsible for producing energySynonymsRelated Words- sarcosome
- cell organ
- cell organelle
- organelle
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