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Investigate how concentration of the enzyme catalase in celery tissue alters the rate of reaction with hydrogen peroxide.
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| Submitted: Sun Dec 15 2002
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Problem: Investigate how concentration of the enzyme catalase in celery tissue alters the rate of reaction with hydrogen peroxide. An enzyme, a biological catalyst, accelerates a chemical reaction, without changing the reaction's outcome and can be recovered from amongst the end products. For just about every reaction in a living organism there is an enzyme to catalyse it. For a chemical reaction to occur two conditions must be satisfied: the reacting molecules collide at the correct orientation to each other; and the second is that the reactants contain enough energy to bring about the breakage of appropriate chemical bonds. The energy can come from heat energy but the temperature needed is hard to obtain and maintain in an organism and is harmful to cells, amongst other things. In addition to raising the temperature, the rate of reaction can be altered by increasing the pressure, the presence of a catalyst,...
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