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Investigating Copper Sulphate as an Inhibitor of Amylase Activity.
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Matthew Iles Investigating Copper Sulphate as an Inhibitor of Amylase Activity Plan Enzymes are generally large protein molecules that act as catalysts, greatly increasing the rate of reactions. A substrate molecule will combine with the active site of a specific enzyme, forming a temporary enzyme-substrate complex, where the reaction takes place. Amylase enzymes hydrolyse glycosidic bonds in polysaccharides, breaking them down into dextrins or disaccharides. The polysaccharide starch is broken down by amylase into the disaccharide maltose. The copper in copper sulphate acts as an inhibitor on this reaction. Inhibitors are substances that reduce the activity of enzymes by interfering with the activity of the active site. They bind to the enzyme either reversibly or irreversibly. Reversible inhibitors will compete with the substrate to bind to the active site of the enzyme, preventing the enzyme-substrate complex from being formed. These competitive inhibitors can however be displaced by the substrate if it is in...
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