reaction temperature (0°C‚ room temperature during the experiment‚ 40°C‚ 60°C‚ 80°C) effect on the rate of reaction between amylase and starch? Variables Dependent variables: the required time for the disappearance of blue-black color (color of Iodine solution mix with starch solution ). Independent variables: reaction temperature (0°C‚ room
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purple. D. What is the purpose of iodine in the Gram’s stain procedure? (What is a mordant?) The iodine helps set the stain by forming an insoluble crystal violet-iodine complex. Basically helps retain the crystal violet to the cell. E. What is the purpose of acetone-alcohol in the Gram’s stain procedure? It is a decolorizer that differentiates between gram-negative and gram-positive. Only the gram-positive bacteria will retain the crystal violet-iodine complex. Gram-negative bacteria will
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Oils react with Iodine‚ chlorine in aqueous alcoholic solution to form iodo-chloro derivatives. Terms related Definitions: Iodine value: Iodine value may be defined as the number of gm of Iodine that will add across the Carboncarbon double bond in hundred (100) gm of the fats or oils. Or simply the amount of iodine (in gm) absorbed by 100gm of fat. Significance: Iodine value is a measure of the extent of un saturation in fats or oils. The greater the number of double bond more iodine is required to
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drink healthy and clean water‚ many ways of purifying water have been invented. I am going to talk about two of the ways to cleanse water and the limitations of the methods in social and economic perspective. Iodine treatment is one of the easiest and cheapest ways to purify water. Iodine solution has been shown to be effective on killing the microorganisms like Giardia cysts
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Table of Contents I. Acknowledgement II. Introduction III. Significance IV. Objectives: General: Specific: V. Patients Profile: Physical Assessment Laboratory Results VI. Anatomy and Physiology VII. Pathophysiology (with Medical-Surgical Mgt.‚NursingMgt.‚Collaborative Mgt.) VIII. Drug Study IX. Preventive Action Plan X. Nursing Care Plan Acknowledgement I want to extend my heartfelt appreciation to my professor Dr. Robert Denopol‚ who was abundantly
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29 September 2010. Karp‚ G. E. (2008). Cell and Molecular Biology. 5th Ed. John Wiley & Sons‚ Inc. New Jersey. pp. 40-50; 74-75. Lea‚ C. (2002) “Biological Macromolecules” University of New Mexico. 29 September 2010. Ophardt. C.E. (2003) “Starch-Iodine” Elmhurst College. 29 September 2010.
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and the solvent. b. Classify the solute and the solvent as polar‚ nonpolar or ionic. c. Identify the solute-solute‚ solvent-solvent and solute-solvent attractive forces. Lewis Structures Solutes: NaCl Naphthalene Glycerol Potassium Iodide Iodine Crystal Solvents: Distilled water Ethyl Alcohol Toluene Solutions Polar‚ Non-Polar or Ionic Attractive Forces NaCl + Distilled Water Solute NaCl Solute-solute Solute-solvent Solvent Distilled water Solvent-solvent NaCl + Ethyl
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by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of macromolecules. To determine the type of macaromolecules present in a certain type of food sample‚various test can be done .The tests performed were‚ iodine testing for starch and glycogen‚ Benedict’s test for reducing sugars‚schultz’ solution for cellulose‚ Phloroglucinol to test for lignin ‚Xantoproitec test and Biuret’s test for protein.And for lipid ‚ Sudan 3 test and emulsion test was conducted
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Determination of the presence of carbohydrates and protein in aqueous solution samples Objectives To determine the presence of starch‚ glycogen‚ reducing sugar‚ peptide‚ and proteins by utilizing Iodine test‚ Benedict test‚ and Biuret test. Introduction The purpose of this experiment was to identify the presence of macromolecules by using various positive and negative controls. The principle building blocks of living organisms are essentially constructed by carbon-containing
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the Sulphuric Acid (H2SO4) by the use of an Iodine clock reaction. Calculate the rate constant‚ mechanism and equation Find the effects of temperature on the rate of reaction The effects of a catalyst on the rate of reaction Find the activation enthalpy (Ea) of the reaction‚ with and without a catalyst Background: Hydrogen Peroxide and Potassium Iodide equation: H2O2 + 2I - + 2H + I2 + 2H2O No spectator ions Iodine clock reactions The Harcourt-Essen reaction
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