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School Purpose: To compare the action of catalse to a non-protein catalyst under different conditions. Apparatus/Materials: Please refer to the procedure in the Enzyme lab handout. Method/Procedure: Please refer to the procedure in the Enzyme lab handout. Hypothesis: The non-protein catalyst (potato) will be less active when compared to the catalase in the liver. This is due to the fact that the liver has a more concentrated active catalyst than the potato. Furthermore, crushing either item will increase the rate of reaction because when crushed the liver and potato have a higher surface area and will react faster. Analysis 1. In part A the gas which evolves is oxygen. The chemical reaction of this is as follows: 2. Yes, H2O2 can be broken down by catalysts other than those found in living systems. An example of such a catalyst is MnO2. This is possible because 3. An increase of temperature slows down the rate of reaction. This is due to the fact that proteins, protein enzymes, and other organic catalysts can slightly denature in a hot reaction, liver, catalyst, rate, because, same, catalase, potato, non-protein, increase, h2o2, enzyme, surface, size, results, refer, protein, procedure, original, little, lab, heat, handout, fresh, fact, due, decreased, decrease, contains, catalysts, area, active, reaction