NAD+ / FAD) Cofactor. Enzymes are the proteins which are necessary to control metabolic as well as chemical reactions of a body. More than one choice may apply. It is the cofactor for the enzyme and does not form a permanent part in the enzyme's structure. It is bound to the protein and it is needed in the biological activity of the protein. Exercises. Cofactor bonded loosely to enzyme is called coenzyme…, Detailed information about the list of coenzymes and cofactors. It is attached to protein and is required for the biological activity of the protein. A cofactor is a generally a metal ion which is bound to a protein or enzyme which helps perform catalysis of the enzyme or protein. Natural cofactors are frequently vitamins or produced using vitamins. Cofactors are chemical compounds that are bound to proteins. Klucevsek, Kristin. metal ions, iron-sulfur clusters) or a complex organic or metalloorganic (e.g. • Categorized under Biology | Differences Between Cofactor and Coenzyme. While Coenzymes act as a transient carrier of specific functional groups from enzyme to enzyme. They act as a transient carrier of specific functional groups from enzyme to enzyme. Coenzymes become the organic molecule that becomes the basis of the proper functioning of an enzyme that has different purposes within the cell. Coenzyme: Coenzymes are small organic molecules. A cofactor is a non-protein chemical compound, while a coenzyme is a non-protein molecule. With help of the analogy, classify each of the molecules described below as a/an: a. inorganic cofactor, b. coenzyme, c. prosthetic group. Cofactor vs Apoenzyme - What's the difference? A substance that becomes essential for the working of an enzyme and carrying out its processes other than the substrate becomes known as a cofactor. Although, coenzyme is a type of cofactor, it is a chemical molecule and a cofactor is a chemical compound. Coenzymes are synthesized from vitamins. 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