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coenzyme

[ koh-en-zahym ]

noun

, Biochemistry.
  1. a molecule that provides the transfer site for biochemical reactions catalyzed by an enzyme.


coenzyme

/ kəʊˈɛnzaɪm /

noun

  1. biochem a nonprotein organic molecule that forms a complex with certain enzymes and is essential for their activity See also apoenzyme


coenzyme

/ kō-ĕnzīm′ /

  1. A nonprotein organic substance that usually contains a vitamin or mineral and combines with a specific protein, called an apoenzyme , to form an active enzyme system.


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Other Words From

  • co·en·zy·mat·ic [koh-en-zahy-, mat, -ik, -zi-], adjective
  • co·enzy·mati·cal·ly adverb

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Word History and Origins

Origin of coenzyme1

1905–10; < German Ko-enzym; co-, enzyme

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Example Sentences

They can usually be separated from their corresponding enzymes by dialysis, the coenzyme passing through the parchment membrane.

The best known example of a coenzyme in plant tissues is in connection with the activity of the zymase of yeast cells.

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