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The Decomposition of H2O2 using Catalase, in yeast as a catalyst.
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| Submitted: Sun Aug 17 2003
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The Decomposition of H2O2 using Catalase, in yeast as a catalyst. Prediction Hydrogen Peroxide decomposes to water and oxygen. When yeast is added, the enzyme Catalase in the yeast speeds up the decomposition. The formula for the decomposition of H2O2 with Catalase is: Catalase H2O2 H2O + 1/2 O2 Reactions in living cells, for example, liver cells, produce H2O2, which is poisonous. Catalase renders it harmless by breaking it down into oxygen and water. This is a catabolic reaction, meaning that the H202 molecule is split into two smaller molecules, H20 and 1/2 O2. This can be explained using the lock and key theory. All enzymes are specific, which means we can think of Catalase as a lock, which is shaped so that H2O2 is the only key that will fit and the only molecule it will break down. The Catalase speeds up the decomposition of H2O2 because it is a catalyst;...
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