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The Decomposition of Hydrogen Peroxide by Catalase The Decomposition of Hydrogen Peroxide by Catalase Aim: An investigation to find the rate of reaction between hydrogen peroxide and Catalase as the concentration of hydrogen peroxide is changed. Introduction: Enzymes are biological catalysts. They therefore increase the rate of reaction by decreasing the activation energy required for that reaction. The catalyst itself is not changed in anyway in the reaction or breakdown. Its main task is to decompose hydrogen peroxide into its elements, oxygen and hydrogen. Fig 1. Shows lowered activation energy with use of enzyme Enzymes are globular proteins which are polymers made up of monomers called amino acids and form a three-dimensional shape. These shapes are determined by the tertiary structure of the proteins. Enzymes have an active site. This is an area on the surface where the substrate molecules combine with the enzyme. The shape of the active site is very important because it complements...

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