chemiosmotic
adjective Date: 1957 relating to or being a theory that seeks to explain the mechanism of ATP formation in oxidative phosphorylation by mitochondria and chloroplasts without recourse to the formation of high-energy intermediates by postulating the formation of an energy gradient of hydrogen ions across the organelle membranes that results in the reversible movement of hydrogen ions to the outside and is generated by electron transport or the activity of electron carriers

New Collegiate Dictionary. 2001.

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  • chemiosmotic — chemi·os·mot·ic .kem ē äz mät ik adj relating to or being a hypothesis that seeks to explain the mechanism of ATP formation in oxidative phosphorylation by mitochondria and chloroplasts without recourse to the formation of high energy… …   Medical dictionary

  • chemiosmotic — chemi·osmotic …   English syllables

  • chemiosmotic — ˌkemēˌ adjective Etymology: chem + osmotic : relating to or being a hypothesis that seeks to explain the mechanism of ATP formation in oxidative phosphorylation by mitochondria and chloroplasts without recourse to the formation of high energy… …   Useful english dictionary

  • chemiosmotic hypothesis — (kem e o os mot ik) The hypothesis that a proton gradient and an electrochemical gradient are generated by electron transport and then used to drive ATP synthesis by oxidative phosphorylation …   Dictionary of microbiology

  • chemiosmotic hypothesis — See chemiosmosis …   Dictionary of molecular biology

  • chemiosmotic coupling — chemosmosis …   Medical dictionary

  • Chemiosmosis — is the movement of ions across a selectively permeable membrane, down their electrochemical gradient. More specifically, it relates to the generation of ATP by the movement of hydrogen ions across a membrane during cellular respiration. An Ion… …   Wikipedia

  • Peter D. Mitchell — Peter Dennis Mitchell (September 29 1920 ndash;April 10 1992) [cite web url=http://www biology.ucsd.edu/ msaier/transport/petermitchell/MitchellFrame 1.html title=Peter Mitchell and the Vital Force author=Milton H. Saier Jr accessdate=2007 03 23] …   Wikipedia

  • Oxidative phosphorylation — The electron transport chain in the mitochondrion is the site of oxidative phosphorylation in eukaryotes. The NADH and succinate generated in the citric acid cycle are oxidized, releasing energy to power the ATP synthase. Oxidative… …   Wikipedia

  • Thylakoid — A Thylakoid is a membrane bound compartment inside chloroplasts and cyanobacteria. They are the site of the light dependent reactions of photosynthesis. The word thylakoid is derived from the Greek thylakos , meaning sac . Thylakoids consists of… …   Wikipedia

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