Simple Experiments on the Enzyme Catalase Aim: The aim of this practical is to use three different techniques to investigate the effect of different concentrations of the enzyme catalase on the rate of breakdown of hydrogen peroxide. Background information Catalase is an enzyme which is found in all living organisms. This enzyme catalases the decomposition of hydrogen peroxide into water and oxygen. Cells continually produce a poisonous by-product of metabolising‚ called hydrogen peroxide. This
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of the best in history. Abraham Lincoln has all the qualities of a great leader‚ it is therefore correct to say he was a catalyst for change‚ since he had tremendous effect on history in his decision making. Till this day after 125 years that he is no longer in this world‚ people are still inspired by him and his leadership skills. Abraham Lincoln can be defined as a catalyst for change due to his concerns‚results-orientation‚courage‚commitment and honesty. Lincoln was successful in becoming the
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I. Title. Restriction Enzyme Mapping of pBR322 Using Agarose Gel Electrophoresis. II. Authors. Author: Partner: Section: Thursday‚ 1:10 pm Date of Experiment: October 25‚ 2012 III. Introduction. Restriction enzymes (or restriction endonucleases)‚ originally isolated from Haemophilus influenzae in 1970‚ are enzymes within a cell that cleave foreign DNA within a specific and predictable nucleotide sequence (known as a restriction site) regardless of the source of such DNA. Such restriction
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LABORATORY REPORT (Click on the Save a Copy button on the panel above to save your report) Activity: Enzyme Activity Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 60 °C (140 °F) 3. Sucrase activity decreases with increasing sucrose concentration. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced 2. Independent Variable. pH 3. Controlled Variables
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Exploring Enzymes - Ground-Up Tissue Activity Abstract Our experiment looked at how increasing the surface area of a substance affects the amount of bubbles created due to the presence of the enzyme catalase. The experiment used two pieces of fish‚ one whole and one ground up‚ which were then covered in hydrogen peroxide. This method allowed us to observe the catalase in ground up fish break down the hydrogen peroxide at a quicker rate than in the piece of fish left intact. This was determined
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that the enzyme concentration will affect the rate of reaction but only up until a certain point because there is a limited supply of substrate. Enzymes are protein molecule that acts as biological catalyst by increasing the rate of reactions without changing the overall process. They are long chain amino acids bound together by peptide bonds. Enzymes are seen in all living cells and controlling the metabolic processes in which they converted nutrients into energy and new cells. Enzymes also help
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Temperature Affecting Enzyme Activity Introduction The basic properties of life revolve around chemical reactions. Without the presence of enzymes some of life’s processes would not come so easily. Enzymes are basically proteins‚ which have specific shapes for different substrates. Enzymes change the rate in chemical reactions. It does this without having to change its own shape‚ which makes enzymes different from other proteins. A common enzyme that we have is catalase‚ which breaks down
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Six Factors Affecting the Performance of an Enzyme Enzymes are considered catalysts; substances that increase the rates of reactions. Enzymes are responsible for thousands of metabolic processes that involve the sustainment of life‚ one common one is simple food digestion. Without enzymes‚ digestion would occur too slowly for life to continue. Enzymes maintain a protein structure consisting of one or possibly more than one polypeptide chains of defined primary structure‚ and take up a characteristic
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The role of protein in hormone enzyme functions Proteins are very important particles in our cells. Proteins are included in basically all bodily cell functions‚ including cellular regeneration and repair‚ tissue maintenance and regulation‚ hormone and enzyme production (James‚ C.S. Delores). They vary in structure as well as function. Talking about hormone and enzyme production‚ it is important to understand that amino acids are the basic components of hormones‚ which are critical chemical
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Vaishnavi Kothapalli Mrs. Manning Honors Biology 30 November 2012 TITLE: The Reaction Rate of Catalase in Various Concentrations of Hydrogen Peroxide QUESTION: How long does the catalase take to float to the top of a cup filled with different amounts of hydrogen peroxide concentration? PREDICTION: A prediction that can be made for this experiment is that the higher the concentration‚ the faster time it takes the catalase to react with the solution. As the concentration increases from
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