One of the main function of Catalase is to prevent the accumulation of hydrogen peroxide (H2O2) in the body by breaking it down into water and oxygen gas. Hydrogen peroxide is a toxic by-product of metabolic reactions. If hydrogen peroxide accumulates in the cells‚ it disturbs the function of cells so it is important to get rid of this toxic chemical from the body. One way to avoid the accumulation of H2O2 is to convert it water and oxygen which can be used in other reactions in the cell. In the
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because as we increased the time of the reaction‚ the amount of hydrogen peroxide decreased. Problem: How does time affect the amount of hydrogen peroxide remaining after the catalase and H2O2 reaction? Hypothesis: I believe if you shorten the time of the catalase and H2O2 reaction‚ then there will be more H2O2 will be present. Materials and Methods Materials: Beakers‚ 50mL of
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The effect of enzyme concentration‚ substrate concentration‚ pH‚ and temperature on the enzyme catalase. Introduction: Enzymes are biological catalysts; proteins and RNA. They are required for most biological reactions and they are highly specific. Each enzyme has an active site. The active site is the spot on the enzyme where a substrate fits in. Substrates binds with enzymes through the active site. Enzymes‚ being highly specific‚ only fit with one certain substrate. Enzymes and substrates
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the reaction between Catalase and H2O2 Sarah AlShemesi In this experiment we’ll be exploring the effects of temperature on the reaction between Catalase and H2O2.We’ll be using five different temperatures to test this. The five different temperatures will be 10‚ 30‚ 50‚ 70 and 90 oC. We will use the liver as a source of Catalase. A 1 gram piece of liver will be inserted into a test tube with 2 cm3 of water‚ then 2 cm3 of H2O2 will be added. The Catalase and H2O2 are expected to react and result
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|breaks down H2O2 into water and oxygen | | | |the tube | |gas with a lower activation energy | |B |Liver |- Reaction occurred right away‚ |4 |- Liver contains large amounts of the | | | |and big‚ white bubbles rose the | |enzyme catalase‚ which break down H2O2.| |
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Biology 20 IB Design Lab Does increasing or decreasing the ph level of a 3% concentration H2O2 (l) solution affect the amount of oxygen released between 15.0ml of the solution and a 5g sample of liver? The reaction is measured by the difference in mass of a balloon that is used to capture the amount of gas released by the catalase enzyme found in liver reacting with a basified 3% H2O2 (l) and an acidified 3% H2O2 (l) . Chemical reactions occur when two or more molecules interact and the molecules
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Abstract: The reaction used to determine the experimental rate law of is 2I-(aq) + H2O2(aq) I2(aq) + 2H2O2(l). The rate law determined experimentally is rate= k[I-]1.017[H2O2]0.927. Additionally by performing essentially the same experiments but with temperature changes one can determine how k is affected by temperature changes and the new activation energy. Also‚ from graphs the activation energy was determined to be 33.3 kJ/mol. INTRODUCTION: The rate of a chemical reaction often depends
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................... 23 N - Kinetics of the Depolymerization of Diacetone Alcohol via Basic Catalysis ................... 27 W - Kinetics of the Reaction of a Food Colourant with Sodium Hypochlorite ..................... 31 X - Kinetics of the Decomposition of Hydrogen Peroxide ....................................................... 37 -2- Schedule of experiments – Winter 2015 – CHM 2330 Lab Section 1 (Tuesday) 2 (Tuesday) 3 (Friday) 4 (Friday) Dates for Lab 1 Jan 13‚ 20‚ 27 Feb 3‚ 10‚ 24 Jan
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temperature and pH on catalase activity BACKGROUND Catalase is an enzyme that detoxifies chemicals that might harm the cell such as hydrogen peroxide (H2O2). The enzyme breaks H2O2 into water and oxygen. The production of the oxygen gas bubbles serves as evidence that the catalase enzyme is working. As catalase is breaking the bonds between H2O2‚ it is releasing energy in the form of heat which is reason for the warmth of the bubbles during the reaction. Starch acts to trap these bubbles and this
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Meerra Gandi‚ Erin Barody‚ Samantha Gutcho Title: The Effect of Adjusted Concentration of Hydrogen Peroxide on the change in reaction rate of liver catalase. Hypothesis: Null Hypothesis: If the concentration of the Hydrogen Peroxide is changed then there would be no change in the reaction rate. Alternate Hypothesis 1: I there is an increase in concentration in concentration of Hydrogen Peroxide then the reaction rate of the liver catalase will increase. Alternate Hypothesis 2: If there is an increase
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