Enzymes are biological catalysts. It increases the rate at which chemical reactions occur by lowering the activation energy. Enzymes are not altered or used up by the reactions they catalyse, so they can be used again to catalyse the reaction of another substrate molecule. Enzymes catalyse nearly every metabolic reaction that takes place in a living organism. All enzymes possess an active site, to which another molecule can bind called the substrate. The specific shape of the active site allows the substrate to fit perfectly. The combined structure of the enzyme and substrate is called the enzyme-substrate complex. Each enzyme will only act on one type of substrate molecule because the shape of the active site will only allow one shape of molecule to fit. The enzyme can either split the substrate into two or more products, or it can join to substrate molecules together. Enzymes are sensitive to temperature and pH, if these are not correc

Some topics in this essay:
Hydrogen Peroxide, Copper Sulphate, Enzymes Enzymes, Procedures- Main, Method Set, Rate Reaction, Assessment Handle, Distilled Water, active site, Enzyme Concentration, copper sulphate, hydrogen peroxide, Oxygen Produced, rate reaction, oxygen gas, amount oxygen, peroxide copper sulphate, molar =, boiling tube, peroxide copper, hydrogen peroxide copper, amount oxygen gas, optimum ph, decomposition hydrogen peroxide, copper sulphate added,