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As enzymes are made up of protein, they can be denatured by the means of physical action like due to change in pH, temp. and pressure, or by cemical procedure by acting some enzymes on them they can be denatured. 5 people found this useful.
In this lab, you will study an enzyme that is found in the cells of many living tissues. The name of the enzyme is catalase (KAT-uh-LAYSS); it speeds up a reaction which breaks down hydrogen peroxide, a toxic chemical, into 2 harmless substances--water and oxygen.hey do not die because your cells use enzymes to break down these poisonous chemicals into harmless substances. Enzymes are proteins that speed up the rate of reactions that would otherwise happen more slowly. The enzyme is not altered by the reaction.