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Biology SC1 Investigation - Hydrogen Peroxide and Enzymes Biology SC1 Investigation Background Science Catalase is an enzyme found in all living cells. It makes Hydrogen Peroxide decompose into water and oxygen. You can represent this in the equation: 2H2O2 =2H2O + O2 Enzymes: Enzymes are able to increase the rate of reaction without actually being consumed in the process. In all, enzymes are very efficient. Small quantities at low temperatures are able to produce results, which would require high temperatures and a violent reaction from any normal chemical means. Although increases in temperature may speed up the reaction, enzymes are unstable when heated. There are three important definitions that are used when talking about enzymes: - The substance that enzymes act on is the substrate. The substance formed by the reaction is the product The site on which the enzyme takes place is called the active site. Enzyme function can be explained by the Lock and Key Hypothesis: the active...

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