After dropping the Hydrogen Peroxide on the apple samples there was no reaction indicated therefore receiving a rating of 0. When the substrate of hydrogen peroxide was added to the substances each performed a vastly different reaction. In Part C, we altered the pH of the solution by adding drops of diluted Hydrochloric Acid to see if it had an affect on the rate of reaction in catalyses on pieces of liver. In Part B, we tested, observed, and recorded the rate of reaction with Hydrogen Peroxide on three substances: apple, liver, and potato. Once this was done, we took the leftover liquids and used it on a new piece of meat to see if the enzyme was reusable. In Part A, we used 3 ml of 3% Hydrogen Peroxide on a piece of liver to observe the rate of reaction. Throughout the three parts of the lab, the ability for enzymes to break down was studied. This study was conducted at New Tech High Coppell under the facilitation of Mrs. The reaction that takes places is in this form: 2H2O2 -> 2H2O + O2 Enzymes such as catalase are vital to our body, because if toxic substances such hydrogen peroxide were not broken down into harmless substances in our body, then they would poison our cells. Catalase breaks down hydrogen peroxide, which is toxic, into 2 safe substances- water and oxygen, by speeding up a reaction. The enzyme studied in this lab was catalase. The reaction rates of enzymes were very much affected by changes in temperature, pH and enzyme concentration. The questions of how environmental factors affect the rate of enzyme-catalyzed reactions were answered in this lab. This lab covered the measuring of the effects of changes in temperature, pH, and enzyme concentration on reaction rates of an enzyme catalyzed reaction in a controlled experiment. The relationship between catalase reaction rate and pH was shown to be parabolic with a peak near neutral.
The final test focused on the reaction rate of liver in varying pH solutions. After testing liver, apple, and potato it was concluded that liver contained the most catalase. Using quantitative as well as qualitative observation the concept that enzymes remain after a reaction was confirmed from the first test. In this lab, the enzyme catalase was used to break down hydrogen peroxide into less toxic water and oxygen gas. Substrate concentration, temperature, and pH all affect the chemical reaction. The purpose of this lab was to test enzyme function in various environments. The Rate of Reaction on Liver, Apples, and Potatoes with Hydrogen Peroxide
0 kommentar(er)
