was designed to investigate the effects of temperature on reactions between the enzyme catalase found in animal tissue with the substrate H2O2. The hypothesis stated that an increase in the temperature of the substrate would create a subsequent increase in the rate of reaction between the enzyme and the substrate. This hypothesis was tested by immersing 1cm cubes of animal tissue (sheep liver) which contained the enzyme catalase into the substrate (H2O2 ) mixed with detergent which foamed showing a
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Catalase Enzyme Lab Samiya Hussein March 9‚ 2012 Introduction In order to receive the necessary amounts of energy required for daily function‚ the digestive system must break down proteins‚ fats and carbohydrates. In doing so‚ the body produces poisonous chemicals; however‚ the cells aren’t harmed. This is because enzymes are used to break down these chemicals. The name of the enzyme that was the main focus of the lab is catalase. Catalase is responsible for catalyzing hydrogen peroxide
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Enzymes are catalysts that speed up chemical reaction but are not themselves consumed or changed by the reaction. The cell’s biological catalysts are proteins. Proteins are made up of one or more polypeptide chains that are folded to make an active site‚ an area in which a material to be acted on by the enzyme‚ called the substrate‚ will fit. The temperature‚pH‚ the concentration of enzyme‚ and the concentration of substrate all affect the activity of the enzyme and the rate of the reaction. The
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Melanie McGivern. Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take
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Biology101 McDowall 10/29/2012 Escherichia Coli “The Bacterial Beast” E.coli or binomial name Escherichia coli was discovered by a German pediatrician named Theodore Escherich in 1885. Dr. Escherich originally named the bacteria‚ bacillus communis coli. After the demise of Dr. Escherich the intestinal bacteria was then named Escherichia coli after the late doctor in 1919. The bacteria Escherichia coli are classified as follows. Domain- Bacteria Kingdom- Eubacteria Phylum- Proteobacteria
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Eucalyptus and Colloidal Silver. Obtain two nutrient agar plates and using a permanent marker draw four quadrants on the bottom of each agar plate. Using a sterile pipet transfer 250 ml of E. coli broth to the middle of each petri dish and evenly spread bacterial culture around the agar plate. Cover and allow the culture to soak into agar for at east 15 minutes. Using sterile forceps‚ carefully place one filter disk from designated sample into the middle of each
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1. INTRODUCTION 5 CCQ Artticles: 5 Comments for essay questions: 5 Brierley and Macdonald‚ “Quebec Civil Law” (1993) 6 Autonomy of the will theory: (B/J) 6 Ghestin: "L ’utile et le juste dans les contrats" (1981) 6 2. PRECONTRACTUAL ANALYSIS 7 What constitutes a valid offer? 7 CLL definition of an offer & an offeror 7 CML definition of an offer 7 Preliminary negotiation v. offer: 8 Harvey v Facey (1893 Privy Council) 8 Termination of an offer – lapse and
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Paper 8- Abraham Lincoln and the Suspension of Habeas Corpus Founding father Benjamin Franklin famously said "Those who would give up Essential Liberty‚ to purchase a little temporary Safety‚ deserve neither Liberty nor Safety and will lose both." Civil Liberties are rights and freedoms that protect an individual from the state. Civil liberties set limits on the government so that its agents cannot abuse their power and interfere unduly with the lives of private citizens. In America‚ the founding
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Tuberculosis (TB) is a bacterial infection spread through inhaling tiny droplets from the coughs or sneezes of an infected person. It is a serious condition but can be cured with proper treatment. TB mainly affects the lungs. However‚ it can affect any part of the body‚ including the bones and nervous system. Typical symptoms of TB include: having a persistent cough for more than three weeks that brings up phlegm‚ which may be bloody weight loss night sweats high temperature (fever) tiredness
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Which of our faculties do you think is more reliable - reason or perception? Give reasons. There are four ways of knowing. Reason is the way we obtain knowledge by means of our justifications and perception is the way we obtain knowledge by means of our experiences. People take different views on which one of our faculties is more reliable between reason and perception. As far as I am concerned‚ I would like to prefer reason tend to be more trustworthy. Two thirds of what we see
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