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Action of the enzyme catalase.
Member rating: No Rating | Words: | Submitted: Mon Jan 26 2004
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Action of the enzyme catalase Aims: This is an experiment to examine the enzyme catalase, which living organisms contain this enzyme, how it acts on the substrate hydrogen peroxide, and how its activity changes in different pH conditions. Hypothesis: Enzymes such as catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. Each enzyme just performs one particular reaction. Catalase is an enzyme found in food such as potato and liver. It is used for removing hydrogen peroxide from the cells. Hydrogen peroxide is the poisonous by-product of metabolism. Catalase speeds up the decomposition of hydrogen peroxide into water and oxygen as shown in the equations below. 2 H2O2 › 2 H2O + O2 It is able to speed up the decomposition of hydrogen peroxide because the shape of its active site matches the shape of the hydrogen peroxide molecule. This type of reaction where...
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