the two selected structures are the cell- wall and endospores. The cell- wall of bacterial cells is found in three distinct shapes such as spherical‚ spiral and rod shaped. The cell wall of the bacterial cells is composed of the proteins and polysaccharides. This is collectively called peptidoglycan. The cell- wall helps the bacterial cell to survive at a greater degree‚ as an independent unicellular organism. This provides protection to the cell from the turgor pressure‚ which is raised due to an
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Which of the following types of molecules are the major structural components of the cell membrane? A) phospholipids and cellulose B) nucleic acids and proteins C) phospholipids and proteins D) proteins and cellulose E) glycoproteins and cholesterol For the following questions‚ match the labeled component of the cell membrane (Figure 7.1) with its description. [pic] Figure 7.1 5) peripheral protein 6) cholesterol 9) glycolipid 11) The presence of cholesterol in
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the key to it all being the additives.” Adding natural polymers to water can dramatically improve its lubricating properties. The Freising-based researchers set about testing renewable raw materials such as celluloses‚ starches or bacterial polysaccharides and improving their use as lubricant additives. Their aim: to make water more viscous by adding biopolymers‚ so it lubricates better. For the idea to become a marketable product‚ other partners were brought on
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Sucrose is a disaccharide formed from D-glucose and D-fructose. The glycosidic linkage is between C1 of glucose and the C2 of fructose. 1H NMR of Sucrose: Mass Spectrum of Sucrose: 13C NMR spectra of sucrose: 3. Why is it difficult to isolate sugars? For simple sugars‚ they are small molecules and they behave similar properties that make them hard to separate. Besides‚ sugars are most electrically neutral. The separation of electrically neutral sugars is a relatively difficult and
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1 of 20 The subatomic particles that play the greatest role in cellular chemical reactions are electrons. protons. neutrons. isotopes. Question 2 of 20 The structural unit that retains the properties of an element is the molecule. atom. cell. electron. Question 3 of 20 Which of the following are found in the nucleus of an atom? Protons Neutrons Electrons A and B Question 4 of 20 The component of an atom or molecule that is most important
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Research indicates that there is a positive correlation between consumption of high fructose corn syrup and obesity percentages. Sucrose is the leading added sweetener in in the manufacture of foods in the Unites States and is the biggest source of fructose. Sucrose and high fructose corn syrup (HFCS) are metabolized identically and react the same way to insulin‚ leptin and ghrelin. Sucrose is indifferent from HFCS in causing obesity. Compared to glucose‚ sucrose is extracted directly from the liver
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Final Program and Abstracts 6th ASM Conference on Biofilms September 29 – October 4‚ 2012 Miami‚ Florida © 2012‚ American Society for Microbiology 1752 N Street‚ N.W. Washington‚ DC 20036-2904 Phone: 202-737-3600 World Wide Web: www.asm.org All Rights Reserved Printed in the United States of America ISBN: 978-1-55581-876-0 Table of Contents ASM Conferences Information....................................... 2 Conference Organization........................................
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fiber Pectin Phenylketonuria (PKU) Photosynthesis Polysaccharides Reactive hypoglycemia Saccharin Sorbitol Starch Sucralose Sucrase Sucrose Sugar Tagatose Total fiber Type 1 diabetes Type 2 diabetes Viscous fiber Whole grains Xylitol STUDENT LEARNING OUTCOMES Chapter 4 is designed to allow you to: 4.1 Identify the basic structures and food sources of the major carbohydrates-monosaccharides‚ disaccharides‚ polysaccharides (e.g.‚ starches)‚ and fiber 4.2 Describe food sources
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Jafri et al. Population Health Metrics 2013‚ 11:17 http://www.pophealthmetrics.com/content/11/1/17 REVIEW Open Access Global epidemiology of invasive meningococcal disease Rabab Z Jafri1‚ Asad Ali1*‚ Nancy E Messonnier2‚ Carol Tevi-Benissan3‚ David Durrheim4‚5‚ Juhani Eskola6‚ Florence Fermon7‚ Keith P Klugman8‚9‚ Mary Ramsay10‚ Samba Sow11‚12‚ Shao Zhujun13‚ Zulfiqar A Bhutta1 and Jon Abramson14 Abstract Neisseria meningitidis is one of the leading causes of bacterial meningitis
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Unit 1: Biochemistry Review Chemical Bonding Three types of bonds Ionic bond: 2 oppositely charged atoms (Na and Cl) Polar covalent: Unequally shared electrons (H and O) Non polar covalent: Equally shared electrons (C and C) or similar electronegativity Electronegativity and chemical bonding Electronegativity is a measure of the strength in which an atom can attract electrons. A difference of < 0. 5 is non polar covalent bond A difference of 0.5 – 1.7 is polar covalent bond A difference of > 1
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