About The Medical Condition Contractions, Mitochondrial
Find the definition of the medical term Contractions, Mitochondrial. Contractions, Mitochondrial defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Contractions, Mitochondrial
| Contractions, Mitochondrial Medical Condition |
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What's The Definition Of The Medical Condition Contractions, Mitochondrial?
Semiautonomous, self-reproducing organelles that occur in the cytoplasm of all cells of most, but not all, eukaryotes. Each mitochondrion is surrounded by a double limiting membrane. The inner membrane is highly invaginated, and its projections are called cristae. Mitochondria are the sites of the reactions of oxidative phosphorylation, which result in the formation of ATP. They contain distinctive RIBOSOMES, transfer RNAs (RNA, TRANSFER); AMINO ACYL T RNA SYNTHETASES; and elongation and termination factors. Mitochondria depend upon genes within the nucleus of the cells in which they reside for many essential messenger RNAs (RNA, MESSENGER). Mitochondria are believed to have arisen from aerobic bacteria that established a symbiotic relationship with primitive protoeukaryotes. (King & Stansfield, A Dictionary of Genetics, 4th ed)
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