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An Investigation Into The Factors That Effect Enzyme Controlled Reactions
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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An Investigation Into The Factors That Effect Enzyme Controlled Reactions Introduction Enzymes are biological catalysts that carry out the thousands of chemical reactions that occur in living cells. In an enzyme-catalysed reaction, the substance to be acted upon, or substrate, binds to the active site of the enzyme. The enzyme and substrate are held together in an enzyme-substrate complex by hydrophobic bonds, hydrogen bonds, and ionic bonds. The enzyme then converts the substrate to the reaction products in a process that often requires several chemical steps, and may involve covalent bonds. Finally, the products are released into solution and the enzyme is ready to form another enzyme-substrate complex. As is true of any catalyst, the enzyme is not used up as it carries out the reaction but is recycled again and again. One enzyme molecule can carry out thousands of reaction cycles every minute. Each enzyme is specific for a certain reaction...
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