Hydrogen Peroxide in the Presence of Yeast Abstract A number of different variables‚ such as the concentration of the hydrogen peroxide solution or the temperature at which the reaction occurs‚ can affect the rate at which yeast breaks down hydrogen peroxide. To prove this we first tested the solution with 3% concentration of peroxide‚ the paper that was soaked in yeast rose in 1.7 seconds. After that we changed our concentration to 2.25%‚ 1.5%‚ and .75% of hydrogen peroxide to see the effects
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are used to break down these chemicals. The name of the enzyme that was the main focus of the lab is catalase. Catalase is responsible for catalyzing hydrogen peroxide into oxygen and water. Since hydrogen peroxide is continuously produced by numerous metabolic reactions‚ catalase helps to prevent the body tissues from being damaged by the peroxide. pH is used to measure the acidity or basicity of a solution and is very important when chemical reactions are concerned. A value of 7 is neutral while
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nourishment. In this case it is hydrogen peroxide. This lab report will be explaining the experiment held to understand the effects of the changes in the amount of substrate on the enzyme’s reaction. Research question: What does the changes in the amount of substrate on an enzyme’s reaction effect on? Hypothesis: I forecast that the more concentrated the hydrogen peroxide is the higher the volume of the foam is and the less concentrated the hydrogen peroxide is the lower the volume of the
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Chemistry Catalyst Report Aim I am trying to investigate the effect of the mass of magnesium dioxide used on the speed of the reaction of 2H2O2(aq) 2H2O(l) + O2(g). I hypothesize that the speed of the reaction is proportional to the rate of decomposition. Independent Variable The mass of MnO2 used Dependent Variable The rate of decomposition through the amount of mass lost Controlled Variables Environment of the experiment Stay in the same place to carry out the experiment and finish the
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Practical Report: Background Information: Hydrogen peroxide (H2O2) is a combination of hydrogen and oxygen. In high concentrations‚ it can be unstable and even poisonous. In lower concentrations‚ such as the types found in many homes‚ it works well as a disinfectant and antiseptic.The reason behind foaming of Hydrogen peroxide is because blood and cells contain an enzyme called catalase. Since a cut or scrape contains both blood and damaged cells‚ there is lots of catalase floating around.When
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concentration of the substrate hydrogen peroxide affects the rate of reaction of the enzyme catalase. Background Information Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all very specific as each enzyme just performs one particular reaction. Catalase is an enzyme found in food such as potato and liver. It is used for removing Hydrogen Peroxide from the cells. Hydrogen Peroxide is the poisonous by-product
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as the potato‚ hydrogen peroxide is broken down to release water and oxygen. Mixtures were allotted time to react‚ with those have a longer time resulting in more substrate being able to be acted upon in correlation. The sulfuric acid was added after the allotted time and acted as an inhibitor. The inhibitor left a mixture of the products and original hydrogen peroxide. Our titrant of potassium permanganate (KMNO4) shows through its purple color the remnants of the hydrogen peroxide‚ which we were
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Glucose Oxidase and Its Various Uses Aaron Truong Since glucose oxidase has an end product called hydrogen peroxide‚ which is a harmful substance to bacteria‚ it can be used to fight bacteria‚ or sterilize objects (can have various uses such as in hand sanitizers‚ toothpaste‚ soap‚ etc)‚ not just biosensors. Another key part in the reaction would be C6H12O6‚ or glucose. Glucose oxidase can be applied to diabetics as mentioned earlier‚ as biosensors work by "keeping track of the
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enzyme-catalyzed reactions‚ we made fifteen tubes that contained reaction buffer‚ hydrogen peroxide‚ turnip extract‚ and the dye. These reagents were placed in large bottles and were labeled with a sharpie. We gathered fifteen small test tubes for testing and three large test tubes to fill it with stock solutions needed to carry out the experiment. The large test tubes were filled with buffer‚ dye‚ and hydrogen peroxide. Each test tube made contrasted in the amounts of solutions used. The odd numbered
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concentration and yeast catalase Aim: To see how the substrate concentration in hydrogen peroxide affects the rate of an enzyme controlled reaction using yeast catalase. Introduction: An enzyme is a biological catalyst made of protein. Enzymes are protein molecules found in living organisms and in this case I will use a yeast catalase. Catalase is an enzyme that catalyzes the reduction of hydrogen peroxide. Hydrogen peroxide is a poisonous by-product of metabolism‚ so it is very important that it is
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