�PAGE �7� �PAGE �1� THESIS I am referring to a condition called Hashimoto ’s Thyroid Disease‚ which is a common hypothyroid disorder found among many different people and countries throughout the world. As you read through this paper‚ you will learn the basics about Hashimoto ’s Thyroid Disease‚ including some of the causes‚ the signs and symptoms‚ and the treatment. OUTLINE Hashimoto ’s Thyroid Disease I. Introduction II. Description and History a. Thyroid b. Hashimoto ’s thyroiditis III
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used is iodine-thiosulfate titration. It is a very useful method‚ since the iodide ion‚ I-‚ is easily oxidized by almost any oxidizing agent. The analysis takes place in a series of steps as follows: 1. A diluted sample of the bleach will be allowed to react with potassium iodide in acidic solution. The iodide ion will be oxidized to iodine while the hypochlorite ion will be reduced to chloride (Equation 1). 2 H+(aq) + OCl-(aq) + 2 I-(aq) ! Cl-(aq) + I2(aq) + H2O(l) (1) Iodine is not very
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coli ) is a negative gram bacteria which stain pink colour ‚ while Staphylococcus aureus ( S.aureus ) is a positive gram bacteria which stain purple colour. Materials Bacteria : Escherichia coli ‚ Staphylococcus aureus Crystal Violet Gram’s iodine Absolute alcohol Safranin Methodology As per manual. Discussion Gram staining is a very importance preliminary step to differentiate the bacteria into gram positive and gram negative and also enable the bacteria to be examined using a light
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fundamental resource needed for photosynthesis. 4. If the plant is kept in the presence of light‚air‚soil‚and water‚ then the plant will have a starch level of 3 because it has all of the necessary environmental conditions. Materials: safety goggles iodine solution petri dishes razor blade forceps beakers trays potting soil plastic lids 95% ethyl alcohol sodium hydroxide medicine cups Procedures: 1. Compare the plants in each tray(characteristics) 2. Label petri dishes dark‚ closed‚ normal‚ closed
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Title: Kinetics: The Rate of a Chemical Reaction Objectives: 1. To study the kinetics of chemical reaction‚ 2 I- + S2 O82- I2 + 2 SO42- . 2. To study the effects of reactant concentration (persulphate‚ S2O82-‚ and iodide‚ I-) and temperature on the rate of chemical reactions. ( i) Study the effect of 0.20M (S2O82-) on the rate of chemical reaction. ( ii) Study the effect of 0.10M (S2O82-) on the rate of chemical reaction. ( iii) Study the effect
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Practical 12: Digestion in Humans Aim: To distinguish between 5 liquids to come to a conclusion from which region of the alimentary canal it was extracted from. Hypothesis In this practical‚ we have been given 5 unknown solutions hence it is not possible for us without any logical analysis to come up with a conclusion regarding the positioning along the alimentary canal. We cannot come up with a proper answer or predict results without running through the tests. I though can base my
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gram-positive. The gram staining procedure consists of fixing a colony of bacteria onto a slide and then flooding the colony with various chemicals. First‚ crystal violet dye was dropped onto the bacterial cells‚ staining gram-positive cells purple. Iodine was added to fix the violet dye into place and then ethanol was used to wash the dye off the unstained cells. Finally‚ a red dye called safranin was used to stain any gram-negative cells present so that they were visible. Once the gram stain procedure
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Manual. Vol. 2013-2014. Plymouth: Hayden-McNeil. 32-35. Data/Results: Part A: In the potassium iodide solution‚ I think there were potassium atoms as well as iodine atoms. In the lead nitrate solution‚ I think there were lead and nitrate ions. The potassium atoms and the lead atoms can be classified as cations‚ since they are metals. The iodine atoms and the nitrate ion can be classified as anions since they are nonmetals. Upon mixing‚ the solution turned into a cloudy yellow color. Evidence that a
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of substrate can fit to the enzyme’s active site. The action of enzymes is reversible and enzymes can be reused. This means that an enzyme can catalyze lots of substrates. Materials Starch solution‚ sodium chloride solution‚ amylase solution‚ iodine solution Apparatus Test tubes‚ droppers‚ white tile‚ stopwatch‚ water bath controller Procedure 1. A water bath is set up at 30°C. 2. 3cm3 starch solution added into a test tube labeled A. 1cm3 of sodium solution is added into the test tube
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presence of iodine. The iodine molecule slips inside of the amylose coil.The amount of blue complex that starch gives with iodine can be measured by using a spectrophotometer. α-amylases are found in saliva‚ pancreatic juice‚ human breast milk‚ serum and certain tissues such as the liver. This enzyme catalyzes the hydrolysis of α (1-4) linkages in starch by breaking it down to maltose and some glucose. As the starch is broken down‚ the coiled structure of α-amylase is unfolded. Therefore‚ iodine will
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