Chemical Aspects of Life and Spit Lab Formal Report 1. Abstract The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it‚ there would be a color change if a reducing sugar is present‚ or it will remain blue (no reducing sugar). The objective of the Starch test was to test for starch in substances by using Iodine. The iodine will cause a substance to turn to a dark blue color if it is positive for starch. The objective
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waxes and oil secreted on to surfaces provide waterproofing in plants and animals. You would test for a presence of a lipid by The two main ways to test for lipids in a sample substance is through the Sudan Red test and the Grease Spot test. Sudan Red is a dye that is lipid soluble. Therefore‚ when Sudan Red is added to a sample that contains lipids‚ the dye will colour the lipids red. The Grease Spot test can also be used identify the presence of lipids in a sample. Lipids make unglazed paper‚ such
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Talisman’s scandal in Sudan‚ taking any other step into an unstable region carries a great risk. II. The Problems 1. Talisman Energy Inc. started as a small independent oil company which needed to grow and expand internationally since that North America offered only limited growth potentials. 2. Talisman Energy Inc. has suffered a great loss not only financially but also the company’s reputation was affected after NGOs accused Talisman of fueling the civil war in Sudan. Some of the major
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benedicts was used. In the grease spot test‚ the objective was to find all the samples that had a lipid. Another one of the lipid tests were the dye test which was a more specific test to find the substances that all contained a fat by using a solution of Sudan 4 and water. The protein test’s purpose was to determine all the test materials that contained a protein by using biuret solution. The procedure for the Spit lab was to perform the starch test and reducing sugar test on both crackers. Then chew up
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Chapter 26 Notes: Ottomans and Arabs Ottomans: Factors of Decline * Competition between elite * Weak rulers * Increasingly powerful Janissary corps * Increased competition from European merchants * Military challenges from the West * Ottomans vs. Russia (result: loss of Serbia‚ Greece‚ and most of Balkans) Survival * Played European rivals against each other * Selim III: reformed bureaucracy‚ new army and navy. Killed by janissaries in 1807 * Mahmud II: slaughtered
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These tests take advantage of the fact that different types of molecules have different functional groups and‚ therefor‚ different chemical properties. Thus‚ they will react to test reagents (also called indicators) differently. Materials: Biuret‚ Sudan III‚ Iodine‚ Benedict‚ water‚ hot plate‚ paper towels‚ pipette‚ ruler‚ goggles‚ and a timer. Method: Benedict’s test for reducing sugar: 1. Ruler was used to mark 1 cm and 2 cm marks on each tubes. 2. Negative control tube was filled with 1cm of
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Nire beltzaren These days we have become so accustomed to war that we don’t even know how many wars are currently active. Do you know how many there are? As I write this paper there are 10 wars and 8 active conflicts. That said most of these conflicts are taking place in Africa. But why there? Well there are a few reasons‚ first there isn’t a lot of education going around. Second there is a lot of poverty leading to unhappiness among the poor. But the third and most prominent reason is the muslim
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For example‚ Salva Dut‚ one of the lost boys of South Sudan. Salva was born in southwest Sudan in 1974 during the civil war of Sudan. When Slava was just eleven when his town was bombed when he was in school. Slava ran out of school and hid behind a bush until this group befriended him‚ but then later the group left him at night. After that‚
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the world’s deadliest viruses. Its causative organism is called Ebola virus. Ebola virus is a member of filoviridae‚ a family of negative-strained RNA viruses. The filoviridae family consists of five known members‚ Marburg‚ Ebola Zaire‚ Ebola Sudan‚ Ebola Reston‚ and Ebola Tai. Ebola virus is spread in a number of ways. An outbreak starts when an infected animal or insect‚ called a vector‚ transmits the virus to a human. Scientists know that monkeys are both a vector and victim of Ebola‚ but
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BIOLOGY LABORATORY Biologically Important Molecules Carbohydrates‚ Proteins‚ Lipids‚ and Nucleic Acids Objectives In this lab you will learn to: 1. Perform tests to detect the presence of carbohydrates‚ lipids‚ proteins‚ and nucleic acids 2. Recognize the importance of a control in a biochemical test 3. Use biochemical tests to identify an unknown compound Introduction Organic molecules are those primarily made up of carbon‚ hydrogen and oxygen. The common organic compounds of living
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