Carbamide peroxide

are enzymes, which have an essential role in biological catalysis by increasing the rate of a reaction. The experiment conducted included an enzyme assay with the enzyme catalase and the substrate hydrogen peroxide. To complete the assay, the catalase enzyme was added to the hydrogen peroxide buffered solution. Every thirty seconds, portions from the tube was removed and placed into the labeled tubes. Based on the degree in color of each sample, a different absorption value would be obtained and…

it can be deduced that the enzyme catalase found in potatoes only reacted to hydrogen peroxide. This is do to the fact that before 10 ml of hydrogen peroxide was added to each test tube residing 3 potato samples and the designated liquid, no reaction was observed. Thus demonstrating the catalase's inability to react to vinegar, soda, water, detergent, and Na OH. Furthermore, shortly after the hydrogen peroxide was added to the liquids of diverse ph levels, a rapid and prominent throng of…

chemiluminescence by acting as a catalyst with hydrogen peroxide. When AgNPs interact with hydrogen peroxide they cause the peroxide to degrade into superoxide and hydroxyl radical, which also react with luminol to form 3-aminophthalate (Equations 2-5) [13]. The further degradation of hydrogen peroxide into other reactive oxygen species promotes higher fluorescence intensity. Figure 5 shows the increased fluorescence intensity of luminol, AgNPs and hydrogen peroxide in solution. However,…

Table of Contents: Introduction………………………………………………………………………………………………………………………..2 Aim……………………………………………………………………………………………………………………………………….2 Background Info……………………………………………………………………………………………………………………2 Hypothesis…………………………………………………………………………………………………………………………….2 Variables……………………………………………………………………………………………………………………………….2/3 • Independent…………………………………………………………………………………………………………………………..2 • Dependent……………………………………………………………………………………………………………………………..3 •…

APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Mohammed Shilleh, Michael Stefano, Jacqueline Watkins, Kelsey Wyman Chin BSC4936 University of Florida APX2 as a Scavenging Mechanism for Superoxides in Chloroplast Introduction and Background Stress can be defined as a disruption of homeostasis. Chloroplasts are especially sensitive to stress and have many levels of defense against it. These defense mechanisms include adjustment of antenna size, thermal dissipation, photochemistry…

Anthony Alvarado Bio 1A Chronic oxidative stress via hydroxyl radical and imbalanced redox homeostasis Redox hemostasis has been shown to be an important factor in the overall aging and neurodegeneration processes in mammalian models; such as, Alzheimer’s and Parkinson’s. As a result, redox homeostasis has been a key point of interest in current research. Redox homeostasis is the balance between electrophiles and nucleophiles in a system, more importantly in a biological system. These…

by the high temperature, but in test tube #2, there was no denatured occurred, so the catalase could convert hydrogen peroxide into water and oxygen. The optimal condition for catalase in this experiment is the temperature should be not too high, so the catalase can’t be denatured. In the experiment 4.4, we could see the effect of pH on enzyme activity by adding 2ml hydrogen peroxide and a small piece of liver to each test tube and adding 20 drops of acidic solution into tube #1, adding 20 drops…

Discussion Enzymes are biological catalysts that help speed chemical reactions. In part A (table 2), it was seen that a normal reaction of catalase and hydrogen peroxide resulted in the release of bubbles (oxygen gas) and the release of energy in the form of heat which shows that the reaction was a exothermic reaction. The reaction was given a reaction rate of four and acted as the control with which we could compare the other results to. When testing whether or not catalase is reusable in part…

chemicals. Our body contains hundreds of enzymes in our cells and this lab will show us how they interact with parts and materials of our bodies. The enzyme we will be focusing on is called catalase. It’s job for the body is to break down hydrogen peroxide a harmful substance into two harmless substances oxygen and water. For the first part of our lab part A we were focusing on observing a normal catalase reaction. We used a normal piece of liver to start it off the rate of reaction for the…

found in beef liver, and will be discovered by the number of oxygen bubbles through the degradation of hydrogen peroxide. Hypothesis The higher the pH level, the more production of oxygen bubbles in the solution. Variables Could affect activity of catalase - Temperature of reactant vessel - Concentration of Hydrogen Peroxide/Catalase - pH level of Hydrogen Peroxide - Competitive/Non inhibitors/obstacle Independent Level of pH in solution Dependent Amount of…