Glycogen is a polymer/polysaccharide that serves as a form of energy storage in animals and fungi and is a primary carbohydrate storage form in animals. Glycogen in humans is made and stored primarily in the cells of the liver and the muscles which functions as the secondary long-term energy. Glycogen is often referred to as animal starch because it is the complement of starch in plants for they have a similar structure to amylopectin but more extensively branched and compact than starch. Glycogen
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activity. For example‚ penicillins interferewith the enzymes involved in biosynthesis of peptidoglycan while lysozyme physicallycleaves the NAM-NAG bond. Lipoteichoic acids: Lipoteichoic acids (LTA) are found only in Gram-positive bacteria.These polysaccharides extend though the entire peptidoglycan layer and appear on the cellsurface. As a consequence‚ these structures can serve as antigenic determinants. Lipopolysaccharides:
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cell. Water collects in cell Vacuoles‚ pressing outwards against the cell wall and producing rigidity in the plant. Without enough water‚ the turgor pressure drops and the plant wilts. Plant cells have a stiff‚ protective wall made up of ‘Polysaccharides’. The cell wall provides and keeps the shape of the cells and it serves as a protective barrier. Fluid collects in the vacuoles and pushes out against the Cell wall. This creates turgor pressure‚ which is what makes the leaves or the vegetable/fruit
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Lesson 02.08 DBA/Module Exam Lesson 02.01: Chemistry of Life · Explain why biological macromolecules are important for everyday life. Cells make large macromolecules by bonding smaller molecules together into chains called polymers (from the Greek polys‚ "many‚" and meris‚ "part"). Polymers are large molecules composed of many identical or similar subunits called monomers. There are four categories of biological macromolecules that provide energy and structure to living organisms and their cells
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* Meiosis – cell division for gamete production * In specialized tissues * Produces cells with the 1n chromosome number * Two Divisions * Meiosis I separates homologous chromosomes * Meiosis II separates sister chromisis * Asexual Reproduction * Mitotic division * Identical offspring * Sexual Reproduction * Fuse gametes from parents (syngamy) to produce a zygote * Each parent contributes half the genetic material * Increase the diversity of
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review article is introductory in nature and gives introduction to composite materials/nanocomposite‚ their applications and the methods commonly employed for their synthesis and characterization. A brief literature survey on the polysaccharide templated and polysaccharide/protein dual templated synthesis of silica composite materials is also presented in this review article. Keywords Nanocomposites Á Thermal properties Á Sol–gel method Á Hybrid material Á Silica precursor S. Pandey Á S. B.
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The Effect of substrate on the Rate of Respiration on Yeast1 Justine Maturan Group 4 Sec. Y – 5L November 18‚ 2014 ________________________________________________________________ 1A scientific paper submitted in partial fulfilment of the requirements in General Biology I Laboratory under Prof. Susan Sedano‚ 1st semester 2014-2015 ABSTRACT In order to determine the effect of the substrate on the rate of respiration of yeast‚ Durham test tube method was used in the first experiment
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was recorded and the solutions were retains for further testing. If the carbohydrates dissolved completely in water to give a clear view‚ this meant they were either a monosaccharide or a disaccharide‚ if the solution was cloudy then it was a polysaccharide. The next test that was carried out was the Iodine Test. 15 drops of solution and 5 drops of iodine were added to a test tube and observed for any colour change. This was repeated for each carbohydrate. If the solution turned blue-black‚ the
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1. Identify the functional group or molecule for each of the following. (3 points) 1. COOH -OH 2. COH -OH 3. COH -OH 1. List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) 1. corn syrup (1 point) positive 2. table sugar (1 point) positive 3. unknown 1 (1 point) negative 4. unknown 2 (1 point) negative 5. unknown 3 (1 point) positive 6. unknown 4 (1 point)
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p. 197) In species within the domain Bacteria‚ the prokaryotic cell wall is a strong but flexible covering‚ made primarily of sugar-protein complexes called peptidoglycans. In contrast‚ species in the domain Archaea may have cell walls made of polysaccharide‚ protein‚ or glycoprotein‚ but they never contain true peptidoglycans. (Postlethwait & Hopson‚ 2010‚ p. 198) Both‚ Archaea and Bacteria use flagella to swim. But‚ Archaea flagella evolve from bacterial type IV pili while bacterial flagella evolve
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