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How varying the substrate concentration (hydrogen peroxide) when reacting with an enzyme catalyse (potato) affects the volume of oxygen produced.
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Enzymes are biological catalysts. They increase the rate of chemical reactions taking place within and around living cells without suffering any overall change. There are 3 known factors that affect the rate of reaction in accordance with predictable interactions between enzyme and substrate molecules: Temperature - The affects of temperature may be explained on the basis of kinetic theory. Increased temperature increases the speed of molecular movement and thus the chances of molecular collisions. It is often said that an enzyme's rate of reaction doubles for every 10° C rise in temperature. pH - Changes in the pH affect the attraction between the substrate and enzyme, and thus the efficiency of the conversion process. Often there is an optimum pH, near pH 7 (neutral) in intracellular enzymes, and in the acidic range between pH 1-6 and in the alkaline ranges between pH 8-14. Concentration - There are two types of concentration,...
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