Factors which Affect the Activity of the Enzyme Catalase Purpose: Must include: background information about concepts involved in the lab‚ statement of purpose of the lab identification of independent and dependent variables. A hypothesis is often not necessary or appropriate. Enzymes are proteins that speed up chemical reactions in cells. They break down molecules called substrates. Each enzyme has only one substrate that it breaks down. Enzymes are produced in the cells of the body
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Biology “Enzyme Activities” Introduction: Enzymes have extremely interesting properties that make them little chemical-reaction machines. The purpose of an enzyme in a cell is to allow the cell to carry out chemical reactions very quickly. These reactions allow the cell to build things or take things apart as needed. This is how a cell grows and reproduces. At the most basic level‚ a cell is really a little bag full of chemical reactions that are made possible by enzymes (Brain). Laboratory
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when different concentrations of catalase are added with hydrogen peroxide. Aim: To see if changing the concentration of catalase (found in celery) with hydrogen peroxide affects the amount of oxygen given of. Background Information: (Hydrogen peroxide - H2O2 1/2O2+H2O) Enzymes: Hundreds of chemical reactions happen simultaneously inside living cells and it’s the job of enzymes to control and regulate the various metabolic activities. Enzymes are biochemical catalysts‚ which
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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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chronic liver disease. Liver disease is any condition that causes liver inflammation or tissue damage and affects liver function. Some important function of liver are to convert the food we eat into stored energy and chemicals necessary for life and growth‚ to act as a filter to remove alcohol and toxic substances from the blood‚ and to manufacture and export important body chemicals used by the body. Liver disease is dangerous and it can effect the body. The liver has many functions‚ so liver disease
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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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What is Enzyme? Enzymes are protein that acts as speed up reactions and break down molecules in our body. However‚ different enzymes only work on certain types of molecules. Enzymes can accelerate the reactions by more than one million times.(3) In our human body‚ there are a total about forty thousand types of enzymes and each catalyzes different kind of molecule.(3) The molecules that enzymes help to accelerate is called substrates‚ and when enzyme is combined together with the substrate‚ it
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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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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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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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