is a polysaccharide. If no reaction occurs in either test the carbohydrate is a disaccharide. Data Type of carbohydrate | Benedicts Test | Iodine Test | Monosaccharide | R | NR | Disaccharide | NR | NR | Polysaccharide | NR | R | Solution | Bendicts Test | Iodine Test | Honey | R | NR | Oats | NR | R | Table Sugar | NR | NR | Apple Juice | R | NR | Powdered Sugar | NR | NR | Results Solution | Type of carbohydrate | Honey | Monosaccharide | Oats | Polysaccharide |
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nightshade fruit is most efficient as an anti-neoplastic agent? 2. What concentration of the extract is most efficient against HPV related cervical neoplasms? 3. What are the implications by the study should the crude polysaccharides derived from the product be proven a potent anti-neoplastic agent? HYPOTHESES: Is the Lubi-lubi extract a potent anti-neoplastic agent against HPV related cervical neoplasms? • Null hypothesis The lubi-lubi (Atropa belladonna)
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and their complex structures. In Bio 202 one way we’ve learned to examine a cell is by taking advantage of the differences within the chemical reactivity of the molecules located within (Lab Manual‚ Chp. 5). Major biological molecules such as Polysaccharides‚ lipids‚ nucleic acids and proteins can be detected with in cells by a technique known as Cytochemistry. Cytochemistry is the practice of fixing‚ staining‚ and examining cells (Lab Manual‚ Chp. 5). Cytochemistry is an in situ experiment‚ meaning
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the number of combining monosaccharide units‚ forming an oligosaccharide or polysaccharide. In the experiment‚ the sulfated polysaccharide‚ κ-carrageenan is extracted. Carrageenans‚ in general‚ have high molecular weights polysaccharides made up of repeating galactose units and 3‚6 anhydrogalactose (3‚6-AG)‚ joined by alternating alpha 1-3 and beta 1-4 glycosidic linkages. There are various types of the polysaccharide which include alpha‚ beta‚ lamba‚ kappa‚ mu‚ and iota carrageenan (figure 1)
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Name: ______________________________________ Date: ________________________ Student Exploration: Dehydration Synthesis Vocabulary: carbohydrate‚ chemical formula‚ dehydration synthesis‚ disaccharide‚ glucose‚ hydrolysis‚ monosaccharide‚ polysaccharide‚ valence Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. If you exercise on a hot day‚ you need to worry about dehydration. In this context‚ what do you think dehydration means? When you are exercising in the heat you will
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ml 1% solution in a small beaker. b. Add 5 drops conc. HCl. c. Cover the mouth of the test tube with a marble and boil in a water bath for 30 minutes. d. Neutralize with solid Na2CO3. Set aside for part B. 3. For polysaccharide extract a. Repeat
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group consisting of a carbon bonded to three hydrogen atoms. The methyl group may be attached to a carbon or to a different atom. • Macromolecule: a giant molecule formed by the joining of smaller molecules‚ usually by a dehydration reaction. Polysaccharides‚ proteins‚ and nucleic acids are macromolecules. • Polymer: a long molecule consisting of many similar or identical monomers linked together by covalent bonds. • Monomer: the subunit that serves as the building block of a polymer. • Condensation
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structure of various polysaccharides permits them to react with the iodine stain to produce a certain color. As far as the molecular level‚ there is an OIL – RIG method. Oxidation occurs when a substance gains oxygen or loses electrons or hydrogen (OIL – oxidation is loss) and reduction occurs when a substance loses oxygen or gains electrons or hydrogen (RIG – reduction is gain). Also‚ the distilled water (test tube one) served as a control for the experiment. Since polysaccharides are complex‚ the 3-
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When gram-negative dies‚ they release lipid A and functions as endotoxin. Core polysaccharide is attached to lipid A and provides stability. Lastly‚ O polysaccharide is what extends outward from the core polysaccharide and functions as an antigen. O polysaccharide is useful for differentiating species of gram-negative bacteria. Lipoproteins are what connect the outer membrane to the peptidoglycan. The plasma membrane of
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0019-9567/05/$08.00 0 doi:10.1128/IAI.73.4.2184–2189.2005 Copyright © 2005‚ American Society for Microbiology. All Rights Reserved. Vol. 73‚ No. 4 Effect of B7-2 and CD40 Signals from Activated Antigen-Presenting Cells on the Ability of Zwitterionic Polysaccharides To Induce T-Cell Stimulation Tom Li Stephen‚1† Marcus Niemeyer‚2† Arthur O. Tzianabos‚2 Martin Kroenke‚1 Dennis L. Kasper‚2‚3 and Wiltrud M. Kalka-Moll1‚2‚4* Institute for Medical Microbiology‚ Immunology and Hygiene‚1 and First Department of
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