An experiment to investigate the effect of temperature on the rate of reaction of the Enzyme Trypsin. Aim: This investigation was on the effect temperature has on the rate that the enzyme trypsin hydrolyses its substrate‚ a protein found in milk (casein). This investigation was conducted under controlled conditions‚ the temperature being the changeable variable. Trypsin and its substrate (powdered milk which is a source of the protein casein) were heated in a water bath. The contents of the two
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In order to deal with growing demands from the Crown‚ the Andean government imposed a number of laws in attempt to profit from this colony; however‚ ironically‚ the laws only proceeded to instigate a rebellion. Specifically‚ the relocation of the Viceroy to Rio de la Plata ignited the Tupac Amaru revolution. Scared about the potential loss of profits‚ the Crown moved the Viceroy located at Lima to Rio de la Plata. The drastic differences in location caused many local elites and colonist to begin
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Aim: To investigate the effect to the potato cells in the different solute concentration water Introduction; Water can move through the different cells due to the difference of water potentials in the cells. If there is a higher solute concentration in the cell than outside the cell‚ the water will move into the cell. However‚ if the concentration of inside the cell is lower than the outside‚ water will not move into the cell. This process is called osmosis. Research question; This investigation
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Materials:1). 0.02 mol dm-3 Potassium Manganate2). 0.2 mol dm-3 Glucose3). 2 mol dm-3 Sulphuric Acid4). 50 cm3 Burette5). 250 cm3 Beaker6). Measuring Cylinder7). Thermometer (-10 to 110 oC)Hypothesis:By adding glucose to a solution of KMnO4 and H2SO4‚ the solution will turn colourless and it will take a specific time for the reaction to complete. By increasing the temperature‚ the time it takes (the rate) for the solution to completely change to colourless will be increased. Thus it can be said‚
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1.Describe the social issue in which you are interested. Be specific. 2.Describe how your issue fits into the field of sociology. Which sociological theories and terminology from the text apply to your social issue? 3.Discuss what is known and unknown about your particular issue. 4.Discuss the value of sociological research into your issue. Are there (or would there be) practical implications of sociological inquiry? 5.Use three credible sources and APA citations where appropriate. Use the
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Sample D –TEACHER INSTRUCTIONS I.B. CHEMISTRY : PRACTICAL ELECTROCHEMISTRY INVESTIGATION : INVESTIGATE THE RATE OF ELECTROPLATING A METAL D DCP CE Goggles and Lab coats must be worn Background Students had been taught ‘Electrochemistry’ as outlined in the IB Chemistry syllabus. Investigation Design an experiment that allows you to investigate a variable affecting the rate of electroplating. Your research question must be focussed and specific and must enable you to carry out your experiment safely
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INVESTIGATIONS OF BUSINESSES I have chosen to investigate JD because they make really good products that have really attracted people which i want to find out about them. Their main activity is to make and also sell brands of other companies. They produce clothings and footwear and they also sell clothings made by other brands. I have chosen to investigate THE OXFAM because it a charity organisation that has helped a lot of people who are under privileged. Their main activity is to help people
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An experiment to investigate a variation of the Stroop effect and how it works on non colour related words. Abstract The purpose of this experiment is to investigate a variation of the Stroop effect. The experiment will include non colour related words as well as colour related words and these words will be written in colours that are not related to the words written. There are 20 participants and they will be shown both conditions in different order and they are required to say the colour of
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animal tissues. Its purpose is to destroy toxic substances which may be introduced into cells. Also‚ some cells use catalase to destroy cellular debris or worn out organelles. In this lab‚ we will use a catalase solution from potatoes and determine the effect of temperature and pH on the action of this enzyme. The substrate of the enzyme will be 3% hydrogen peroxide (H2O2). Catalase works by the following mechanism: 2 H2O2 ------------------>____2 H2O+ O2 Materials: • 1M HCl • 6 test tubes
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To investigate the effect of different caffeine concentration on the heartbeat rate of Daphnia at room temperature. Introduction: Caffeine is found‚ and produced in many plant species to function as a natural pesticide‚ and as an inhibitor of seed germination of other nearby coffee seedlings to give it a better chance of survival. Caffeine is able to paralyze and kill certain insects upon feeding on the plants that produce caffeine. Coffee‚ tea and cocoa are common caffeine-containing
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