1) Benzoquinone 2) Coenzyme 3) Coenzyme q 4) Quinone
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any of several members of a series of organic compounds belonging to a class called quinones. Widely distributed in plants, animals, and ... [3 related articles]
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http://www.britannica.com/eb/a-z/u/1
A nutrient that the body needs in small amounts to function and stay healthy. Ubiquinone helps mitochondria (small structures in the cell) make energy. It is an antioxidant that helps prevent cell damage caused by free radicals (highly reactive chemicals). Ubiquinone is fat-soluble (can dissolve in fats and oils) and is found in fatty fish, beef, s...
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http://www.cancer.gov/dictionary?expand=U
<biochemistry> Small molecule with a hydrocarbon chain (usually of several isoprene units) that serves as an important electron carrier in the respiratory chain. ... The acquisition of an electron and a proton by ubiquinone produces ubisemiquinone a free radical), a second proton and electron convert this to dihydroubiquinone. Plastoquinone, ...
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http://www.encyclo.co.uk/local/20973
(u″bĭ-kwĭ-nōn´) coenzyme Q.
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http://www.encyclo.co.uk/local/21001
(= coenzyme Q) Small molecule with a hydrocarbon chain (usually of several isoprene units) that serves as an important electron carrier in the respiratory chain. The acquisition of an electron and a proton by ubiquinone produces ubisemiquinone (a free radical); a second proton and electron convert this to dihydroubiquinone. Plastoquinone, which is almost identical to ubiquinone, is the plant form.
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Type: Term Pronunciation: ū′bi-kwī′nōn, ū-bik′wi-nōn Definitions: 1. A 2,3-dimethoxy-5-methyl-1,4-benzoquinone with a multiprenyl side chain; a mobile component of electron transport.
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http://www.medilexicon.com/medicaldictionary.php?t=95375
Ubiquinone: See: Coenzyme Q10.
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http://www.medterms.com/script/main/art.asp?articlekey=34464
[
n] - any of several quinones that function as electron-carrying coenzymes
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http://www.webdictionary.co.uk/definition.php?query=ubiquinone
coenzyme Q noun any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration
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https://www.encyclo.co.uk/local/20974
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