TABLE OF CONTENT NO. | CONTENT | PAGE | 1. | Title | 2 | 2. | Theory | 2 | 3. | Introduction | 2 | 4. | Objective | 3 | 5. | Apparatus | 3 | 6. | Procedure | 4 | 7. | Result | 6 | 8. | Calculation | 10 | 9. | Discussion | 13 | 10. | Conclusion | 14 | 11. | References | 14 | TITLE: H1 – Osborne Reynolds Demonstration INTRODUCTION: Osborne Reynold’s Demonstration has been designed for students experiment on the laminar‚ transition and turbulent flow. It consists of a transparent
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I) Introduction In this lab‚ a test was conducted to determine how the relative redox activity of chloroplasts from spinach leaves‚ which were performing photosynthesis‚ would change when in the presence or absence of light. To observe these changes in redox activity‚ the chloroplasts were exposed to DCPIP‚ a chemical that changes color according to such activity. By determining the redox activity of the chloroplasts‚ it could then be inferred which chloroplasts were photosynthesizing more actively
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alcohol called cyclododecanol to the corresponding ketone which is cyclododecanone by oxidation. Procedures: Gilbert‚ John and Stephen F. Martin. Experiment Organic Chemistry: A Miniscale & Microscale Approach. Belmont‚ CA: Thomson Brooks/Cole‚ 2010. 537-547. Print. Data/ Results: Synthesis of cyclododecanone: Cyclododecanol | 0.2691 (g) | Sodium hypochloride | 2.300 (ml); positive for 1 time test (purple/black) | Watch glass | 49.1541 (g) | Watch glass + cyclododecanone
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show the rate at which starch is broken down.1 This occurs when polyiodide chains are formed from starch and iodine. However‚ as starch is hydrolyzed into smaller carbohydrate units‚ the blue-black color does not appear. Therefore‚ using this iodine test‚ the effects of pH on the function of amylase can be determined by the time it takes (if at all) for the iodine to remain its orange-yellow color.2 Hypothesis Enzymes must be kept at certain conditions to function at its optimum level. Indeed‚ factors
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Staphylococcus aureus are two medically important species of bacteria. A culture from the nose and throat was taken to perform whether or not Staphylococcus epidermidis or Staphylococcus aureus were detected. Test were performed to determine which Stpahylococci was present and the results of the test indicated that Staphylococcus epidermidis was present. Introduction: The genus Staphylococcus includes more than 20 species as described in Bergey ’s Manual (2001). Only two are significant to humans
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at preserving the sliced‚ chopped‚ and or diced food. Since our experiments are limited by time and costs‚ we will stick to the simplest of the available options. So this study or experiment was already tried by the chefs and scientists at America’s test kitchen. At this link you will find the source of our idea for this project; http://science.wonderhowto.com/how-to/best-investigatory-projects-science-16-fun-easy-ideas-kickstart-your-project-0147689/. Since many homemakers have trouble in the preparation
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Lab 2 Tensile Test Abstract The aim behind this experiment was to put Mild steel‚ copper and aluminium through a tensile test‚ with Mild steel being tabulated and graphed to show its properties and how they could be used in the real world. Introduction/Theory Tensile testing is one of the most simple and widely used materiel tests available. It is used to characterize the mechanical properties of the material and has direct implications on the design and construction of the end product. This test
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released without the presence of CO2‚ meaning that it had to be coming from the water. This discovery also showed that photosynthetic reactions are different than others because they give up oxygen‚ whereas others use CO2. Lastly‚ it showed that oxidation-reduction reactions are a major part of photosynthesis. Electron-acceptor molecules are being reduced and oxidized as electrons move around during photosynthesis. As part of this movement‚ electrons reduce NADP+ to NADPH‚ which is used in light-independent
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Alyssa Caparelli Organic Chemistry 12A Professor Alston October 28‚ 2014 Isolation of Chlorophyll and Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene‚ chlorophyll-A‚ and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol‚ and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then‚ the solid pigments were run through a column using a non-polar solvent‚ hexane
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INTRODUCTION The Gram Negative lab had two parts; the aim of the first part is to determine the concentration of gram negative bacteria in a water sample collected from a creek near Providence Road‚ Strickling. Gram negative bacteria have a cytoplasmic membrane‚ a thin peptidoglycan layer‚ and an additional outer membrane composed of phospholipids and lipopolysaccharides. Because gram negative bacteria have a relatively thin cell wall when compared to gram positive organisms‚ they are consequently
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