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Biology Experiment Report --Activity of starch synthase enzyme Introduction Enzyme is a protein that acts as a catalyst in biochemistry reactions. Enzymes speeds up biochemical reactions by lowering the activation energy-the minimum energy required for a chemical reaction to take place. With the presence of enzyme, the rate at which the reaction proceeds to form the product can greatly increase by a factor of up to 1020. Enzymes have several important properties: * They are specific. Each enzyme is specific to a particular reaction or group of similar reactions. For example, trypsin cuts an amino acid chain at a point between arginine and lysine, and nowhere else; amylase only attacks 2-glycosidic bonds but not other bonds. This can be explained by the 'lock and key hypothesis': each enzyme has an active site-the site on the surface of the enzyme molecule that binds the substrate molecule. The size, shape and chemical nature of the active site corresponds...

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