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Catalase investigation
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| Submitted: Fri Oct 29 2004
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CATALASE INVESTIGATION PLANNING SECTION Introduction This investigation aims to determine the effect that varying the pH of the conditions in which a reaction between an enzyme and a substrate takes place. In particular the reaction of hydrogen peroxide being broken down into water and oxygen by an enzyme, catalase. 2H2O2 --> 2H2O + O2 This reaction would normally occur naturally, but in the presence of the enzyme catalase the reaction occurs much more rapidly and vigorously. Enzymes An enzyme is a biological catalyst. A catalyst can be defined as; a substance that increases the rate of a chemical reaction by reducing the activation energy, but which is left unchanged by the reaction. There are more than 1500 known enzymes today, each one specific to its substrate. An enzyme is any one of many specialised organic substances, composed of polymers of amino acids, which act as catalysts to regulate the speed of the many chemical reactions...
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