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Catalase on hydrogen peroxide

The aim of this study was to test the rate of reactivity of the enzyme catalase on hydrogen peroxide while subject to different concentrations of an inhibitor. The hypothesis was that hydrogen peroxide will be broken down by catalase into hydrogen and oxygen, where a higher concentration of inhibitor will yield less oxygen, resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed that less gas was produced as the concentration of the inhibitor rose. This Is because more enzymes were inhibited, and so less active sites were available for reaction.

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Preview of the essay: Catalase on hydrogen peroxide

Abstract The aim of this study was to test the rate of reactivity of the enzyme catalase on hydrogen peroxide while subject to different concentrations of an inhibitor. The hypothesis was that hydrogen peroxide will be broken down by catalase into hydrogen and oxygen, where a higher concentration of inhibitor will yield less oxygen, resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed that less gas was produced as the concentration of the inhibitor rose. This Is because more enzymes were inhibited, and so less active sites were available for reaction. Reasearch and rationale Hypothesis: Catalase will break down hydrogen peroxide in water and hydrogen. A higher concentration of inhibitor will yield a slower rate of reaction, thus yielding less oxygen in a given time. Null hypothesis: Catalase will break down hydrogen peroxide in water and hydrogen. The concentration of the inhibitor will have no effect on the rate of this reaction. Supporting knowledge: Enzymes function as biological ...





... of the Worldwide Protein Data Bank. It is a reference source for the scientific community all over the world, and as such works under strict standards Source 2 is from BRENDA, the ‘main collection of enzyme functional data available to the scientific community.’ As it is also used widely by the scientific community, it is highly credible. Source 7 is from a professional scientific journal found on JCB (The Journal of Biological Chemistry). It would have undergone rigorous checks by the writers as well as peer review before being published. Sources 4, 9, and 10 are from online textbooks, one of which being from Elmhurst College, and would have to have been checked before being published. I am generally pleased with the results I have obtained, as they are coherent with biological and chemical principles. The correlation between my variables was clear, and confidently supported my hypothesis.
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Natural Sciences
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Biology
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Molecular Biology
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