"Colorimetry iodine clock" Essays and Research Papers

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    Final Year Project Progress Report Title: Fat Content Analysis and Characterization of Food Class and Group No. : AS114103/2A1 Student Names : Chan Hoi Ching (120586347) : Chan Wai Yi (120464356) : Cheung Kit Cheung(120552694) : Lam Chi Ching (120224281) : Lam Pik Shan (120181829)

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    Testing for Macromolecules

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    oil‚ glucose solution‚ sucrose solution‚ starch solution and distilled water were added separately into six marked test tubes. The volume added was about one finger thick in depth of a test tube. 2. 5 drops of Iodine solution was added to each test tube. 3. The sample’s reaction with iodine was recorded. 4. The samples connected by another group with 5 drops of Benedict’s solution added were heated all together in hot water bath. 5. The test tubes containing samples were taken out of the hot water

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    Proteins Lipids And Nucleic Acids Professor Anthony Depass Biology 1 9/25/14 Introduction: By completing lab exercise 6 : Biologically Important Molecules‚ we are able to perform tests such as the Benedicts Test for Reducing Sugars‚ Iodine Test‚ Biuret Test‚ Sudan IV Test‚ and lastly the Grease-Spot Test that detect the presence of biologically important carbohydrates‚ protein lipids and nucleic acids. Most known compounds in living organism are if fact carbohydrates‚ lipids‚ proteins

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    Microbiology week 1 quiz

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    function of the mordant iodine in a Gram staining procedure? A mordant causes the crystal violet to run. A mordant fixes the bacteria to the slide. A mordant keeps dye attached to an object. All of the above 5. What is the order of reagents used in the Gram stain? crystal violet‚ iodine‚ safranin‚ alcohol alcohol‚ crystal violet‚ iodine‚ safranin iodine‚ crystal violet‚ safranin‚ alcohol crystal violet‚ iodine‚ alcohol‚ safranin crystal violet‚ safranin‚ alcohol‚ iodine 6. The presence of

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    Bactine Original First Aid Liquid (Bactine)‚ and Povidone-Iodine Solution‚ 10% Topical Microbicide Antiseptic (Iodine) are an appropriate antiseptic to can kill a sample bacterial contaminant found in the local environment‚ and if so‚ which is the most effective? The purpose of this experiment is to determine the antibacterial effectiveness of Scope‚ Listerine‚ Bactine‚ and Iodine in relation to each other. Scope‚ Listerine‚ Bactine‚ and Iodine each are believed to be effective antiseptics: * Scope

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    Hashimoto thyroiditis respond better. * Treatment of hypothyroidism or hyperthyroidism often reduces the size of a goiter. * Thyroid hormone replacement is often required following surgical and radiation treatment of a goiter. Use of radioactive iodine for the therapy of nontoxic goiter has been disappointing and is controversial. * Medical therapy of autonomous nodules with thyroid

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    Solution 10. 1% Starch Solution 11. Onion Juice 12. 10% Sucrose Solution 13. Vegetable Oil 14. Biuret Reagent 15. Iodine 16. Benedicts Reagent Methods In this lab there are I complete two different tests. The procedure was relatively the same for each test. I would first add 3ml of a given substance to a test tube‚ followed by 5 drops of either Biuret Reagent or Iodine. Once the agent is added‚ I swirled the two substances and then observed the results. The first was to test proteins‚ and

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    Grouping elements with similar chemical properties together Date: 4.10.2012 Objectives The objective of this experiment is to experimentally investigate which elements show similar chemical properties. Chemical principle Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a dull gray‚ silver solid under standard conditions. Calcium atoms have an electron configuration of (2‚ 8‚ 8‚ 2) and 2 outermost shell electrons. Calcium is in group 2 and period 4 of the

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    Benedict’s solution is added to each test tube. Both test tube are heated together in the water bath for two minutes. The result is recorded in Table 1. 2. A few drops of fresh solution A and B are added separately spaced on a white tile. 1-2 drops of iodine solution are added on each solution. Observations are recorded in Table 1. 3. 2 ml of solution B is pipetted into each of four boiling tubes. The tubes are labelled 1‚ 2‚ 3and 4 respectively near mouth of tube. 4. Tubes 1 and 2 are placed in

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    The Thyroid Gland

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    The thyroid gland • • • • • anatomic considerations Formation and secretion of thyroid hormones Transport and metabolism of thyroid hormones Effects of thyroid hormones Regulation of thyroid secretion introduction: the thyroid gland • The thyroid gland maintains the level of metabolism in the tissues that is optimal for their normal function. • Thyroid hormones stimulate the O2 consumption of most of the cells in the body • Thyroid hormones help regulate lipid and carbohydrate metabolism • Thyroid

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