temperature on 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
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Function of Liver * The liver is a part of the digestive system‚ but it does much more than simply process food intake. It is responsible for producing substances that will break down fats and lipids‚ making foods more digestible. vIt also produces several amino acids‚ which are essential to protein production‚ without which a body could not function. The liver produces much of the cholesterol in a body‚ whether healthy or unhealthy. Aside from the liver’s production abilities‚ it also acts as
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have a cancer that has already spread to the liver or they will come back in future years with metastatic cancer to the liver.” Liver cancer‚ or other known as Hepatocellular Carcinoma‚ is a cancer residing in the liver. There are other cancers like metastatic cancer that starts at other organs then spreads to the liver. Being the third most common cancer in the world‚ it is also one of the deadliest. Twenty percent of the patients that are affected by liver cancer survive for a year after diagnosis
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Abstract The aim of this study was to test the rate of reactivity of the enzyme catalase on hydrogen peroxide while subject to different concentrations of an inhibitor. The hypothesis was that hydrogen peroxide will be broken down by catalase into hydrogen and oxygen‚ where a higher concentration of inhibitor will yield less oxygen‚ resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed
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Catalase is a common enzyme found in the bodies of all living organisms in contact with oxygen. It is involved in reacting with hydrogen peroxide to convert it into water and oxygen and can do so with millions of hydrogen peroxide particles each second. These types of enzymes have many uses in bodily systems commonly known as proteins that speed up the rate of the metabolic process by regulating the chemical process which helps digest food and break down toxic substances. The most favourable conditions
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Practical: The effect of pH on enzyme activity Rationale Amylase is an enzyme involved in the digestion system which catalyses the breakdown of starch into sugars. It is not only present in human saliva but also in the pancreas‚ where it hydrolyses dietary starch into disaccharides and trisaccharides which are converted by other enzymes to glucose to supply the body with energy. pH has an effect on the activity of all enzymes‚ including amylase. As the pH level increases‚ the enzyme activity increases
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of hydrogen peroxide (H2O2) into water and oxygen gas. An enzyme known as catalase facilitates this decomposition reaction. The catalase enzyme acts as catalysis‚ helping lower the energy needed to activate the reaction while the enzyme itself is not affected. Catalase is a digestive enzyme used to break down hydrogen peroxide‚ which is a normal byproduct of cellular respiration. The reaction could take place without the help of catalase‚ but it would happen a lot more slowly because more energy
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Title: The affects of hydrogen peroxide on catalase reactions in animal and plant cells at different temperatures and states. Introduction: All living organisms in the kingdoms of life are composed of and depend on cells to function normally. Not all cells‚ however‚ are alike. There are two primary types of cells: eukaryotic and prokaryotic cells. Cells contain organelles‚ or tiny cellular structures‚ that carry out specific functions necessary for normal cellular operation. (Regina Bailey Updated
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reactions Keywords: Alkaline phosphatase; kinetics; Enzyme-cofactor interaction; synergism * corresponding author. Email: femijohn@gmail.com 43 INTRODUCTION The roles of metal ions in metalloenzymes include direct participation in catalysis‚ stabilization of protein structure and regulation of enzymatic activity. Membrane alkaline phosphatase (ALP) is a metal-containing enzyme that serves as a good model for the study of metal ion interactions in enzyme catalysis. Native E. coli ALP contains three
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THE HUMAN LIVER Steve Shockley SC235: General Biology 1: Human Perspectives Professor Alissa Rennie January 4‚ 2015 The Liver is the body ’s second largest organ‚ weighing about three pounds in an average adult. The human Liver performs many vital functions and is not like any other organ‚ it cannot be compensated by other organs or machines. It is positioned in the upper right side of the abdomen‚ just under the diaphragm. It’s a reddish brown color with four bulging lobes. The main
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