Rate of Catalase in Various Concentrations of Hydrogen Peroxide QUESTION: How long does the catalase take to float to the top of a cup filled with different amounts of hydrogen peroxide concentration? PREDICTION: A prediction that can be made for this experiment is that the higher the concentration‚ the faster time it takes the catalase to react with the solution. As the concentration increases from 1% to 100%‚ the average reaction rate of the catalase will decrease‚ as the catalase will speed
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of pH on the Function of Enzymes Rena Mototani Glen Rock High School Advanced Biology 2014-2015 Effects of pH on the Function of Catalase Rena Mototani Problem: How does the pH of a cell affect the function of the enzyme catalase? Introduction In this lab‚ we experimented the effects of pH on the function of the enzyme catalase. Catalase is an enzyme that brings about the reaction by which hydrogen peroxide is decomposed to water and oxygen (Encyclopedia Britannica). The chemical
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Activity Abstract Our experiment looked at how increasing the surface area of a substance affects the amount of bubbles created due to the presence of the enzyme catalase. The experiment used two pieces of fish‚ one whole and one ground up‚ which were then covered in hydrogen peroxide. This method allowed us to observe the catalase in ground up fish break down the hydrogen peroxide at a quicker rate than in the piece of fish left intact. This was determined by observing a larger formation of
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Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages‚ and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available‚ the quicker the reaction will happen except in one test
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factors that effected the rate of enzyme reactions were the enzyme concentration‚ pH‚ and temperature. These environmental factors help enzymes break down the poisonous chemicals into harmless substance. When we tested the liver with 2ml of hydrogen peroxide for a normal reaction it showed that it was exothermic. We added more hydrogen peroxide and the reaction rate of the liver was 3. We learned that the catalase is reusable because the liver reacted both times when we put in the hydrogen peroxide
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changed‚ the functions will most probably modify as well. In nature‚ this happens when the temperature and concentrations of different components are altered. In this lab experiment‚ we will be doing an in-depth research of exactly what happens to the enzymes‚ when it happens‚ and why it denatures the way it does. b. Hypothesis Materials and Methods a. Materials 50ml beaker of fresh potato catalase Reaction chamber Ring stand and clamp 10ml graduated cylinder 100ml graduated cylinder
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transfer 10 mL of H2O2 into an unlabeled 60-mL cup. Then‚ we used a transfer pipet to add one mL of catalase solution into the unlabeled 60-mL cup that we put H2O2 in. After that‚ we observed the solution for one minute. Then we tested the effect of boiling on enzyme activity. First we used a transfer pipet to transfer 4 mL of catalase into a test tube. After that‚ we placed the test tube filled with catalase in a boiling water bath for five minutes. While we were waiting‚ we rinsed the unlabeled cup we
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enzymes to work. Temperature of the environment must be correct for each enzyme because different enzymes will have different temperature ranges in which they can live. pH levels in the environment must also be correct because if the environment around the enzyme is too basic or acidic‚ the enzyme will quickly denature. Hydrogen peroxide (H2O2) is naturally formed in living organisms‚ however it is very harmful and is broken down immediately by several enzymes including catalase. This enzyme catalyses
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in the body produce toxic by-products which need to be converted. The liver produces hydrogen peroxide‚ which is extremely poisonous. When the catalase comes in contact with the hydrogen peroxide‚ it is broken down into water and oxygen. Aim: The aim is to investigate and determine the effect of change in pH on the activity of the enzymes catalase. Equipment: Test tubes Test tube rack Pipettes Stopwatch Ruler Pen Safety goggles Gloves Materials: Liver pureed 3% of hydrogen
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Prac 3 The effect of change substrate concentration on the activity of an enzyme. Purpose To investigate the effect of change on the substrate concentration on the activity of an enzyme(catalase). Materials Potato‚ mortar & pestle‚ 4 test tubes‚ test tube rack‚ spatula‚ hydrogen peroxide 6%‚ 3%‚ 1.5%‚ pipettes‚ scalpel‚ ruler. Procedure 1. Cut using scalpel several raw potato cubes each measuring 1 cubic centimeter (cc). 2. Each cube was ground with a mortar & pestle and then added
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