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Determine how the substrate concentration affects the activity of catalase in hydrogen peroxide.
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| Submitted: Tue Mar 02 2004
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The aim of this experiment is to determine the substrate concentration affects the activity of catalase in hydrogen peroxide. Enzymes are biological catalysts; they are globular proteins and allow many chemical reactions to occur within the homeostasis constraints of a living system. Enzymes function as organic catalysts. A catalyst is a chemical involved in, but not changed by, a chemical reaction. Many enzymes function by lowering the activation energy of reactions. By bringing the reactants closer together, chemical bonds may be weakened and reactions will proceed faster than without the catalyst. The shape of the protein determines the functioning of the enzyme. The arrangement of molecules on the enzyme produces an area known as the active site within which the specific substrate(s) will "fit". It recognizes, confines and orients the substrate in a particular direction. Many enzymes require the presence of an additional, nonprotein, and cofactor. Some of...
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