Microbiology: An Introduction‚ 10e (Tortora et al.) Chapter 14 Principles of Disease and Epidemiology Test Bank 1) A commensal bacterium A) Does not receive any benefit from its host. B) Is beneficial to its host. C) May be an opportunistic pathogen. D) Does not infect its host. E) B and D only. Answer: C media. B) Some microorganisms don’t cause the same disease in laboratory animals. C) Some microorganisms cause different symptoms under different conditions. D) Some microorganisms can’t be observed
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POLHN Microbiology Student Name: SOKOPETI FAKAOSIFOLAU. Assessment 6 – Gram negative bacilli 1. Which of the following is not true of Enterobacteriaceae? a. Gram negative bacilli b. Oxidase positive c. Reduce Nitrate to Nitrite d. Ferment glucose with acid production 2. Which of the following organisms does not belong to the Enterobacteriaceae group? a. Shigella flexneri b. Eschericia coli c. Proteus mirabilis d. Pseudomonas aeruginosa 3. Name the four species of Shigella
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kill that species. For the purpose of bacteria identification‚ numerous tests have been devised to find out the exact species in question. However‚ because new strains continue to emerge‚ it is of the utmost importance that microbiologists and microbiology students understand the nature of each bacterial species and how that species creates and maintains its complex communities. Of equal
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Introduction The science of microbiology is all about microorganisms‚ what they do and how they work. Microorganisms are ubiquitous‚ and are a very important part of life everywhere since they have been around for billions of years. The two main themes associated with microbiology are (1) having an understanding of the nature and function of the microbial world‚ and (2) being able to apply that understanding of the microbial world so that the benefits to the Earth and humans are known(6). This lab
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hypothesis is one that offers the simplest most reasonable explanation and can be tested. D.the goal of an experiment is to prove that scientists are always correct in their predictions Answer Key: C Question 3 of 12 2.0 Points Microbiology continues to be an important research field for all of the following reasons‚ except: Correct A.all infectious diseases have had vaccines developed and therefore can be prevented B.many forms of genetic engineering depends on microorganisms
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Grams staining method and reliability of this method. According to me‚ Grams staining process is a simple technique that assists in recognition of etiological agent and therefore can be called as one of the most significant staining practices in microbiology. Though‚ Gram is concerned that the staining process developed by him is imperfect because not all bacteria can be stained by it‚ but in my opinion‚ when we pour ethanol over the slide to wash away the dye then only definite bacteria can retain
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between a life threatening diseases to a creation of certain antibiotic. Understanding the principals of living microbes and identifying my unknown bacteria through numerous biochemical and metabolism tests‚ with the outmost confidence‚ Proteus vulgaris had the precise qualifications. The point of this report is to further explore the identification of my unknown bacteria by revealing the results of the experiments and comparing them to the other six known bacteria: Micrococcus luteus‚ Staphylococcus
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primary focus of this lab was on microscopy and simple stains. Crystal violet and Carbol fuchsine‚ simple staining components‚ were used to stain the slide in order to see the different microbes in order to determine their cellular shape and identify unknown ones by comparing. Introduction Bacterial cells are usually colorless because cytoplasm‚ for the most part‚ is transparent. Since the bacteria are colorless‚ it is almost essential to add a stain to make the bacteria more visible. Once stained
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Biology was fascinated me tremendously particularly when I was introduced to field of microbiology. I used to wonder how these primitive microbes grow and communicate with each other. Theoretical knowledge of microbiology grabbed my attention and made me curious about these tiny microbes which we cannot be seen through our naked eyes. Therefore I decided to pursue my higher studies and specialisation in microbiology. I started my graduation
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CHM 2046 L Scheme of Analysis for Unknown 9A/9B “Fair Game” Unknowns * Cations: Na+‚ K+‚ NH4+‚ Ca2+‚ Mg(H2O)62+‚ Al(H2O)63+‚ Zn(H2O)62+‚ Cu(H2O)2+‚ Ag(H2O)+ * Anions: Cl-‚ NO3-‚ SO4-2‚ HSO4-‚ OH-‚ CO3-2‚ HCO3-‚ S-2 * Insoluble Salts: Ca(OH)2‚ CaCO3‚ CaSO4‚ Mg(OH)2‚ MgCO3‚ Ag2O‚ AgCl‚ Ag2S‚ CuO‚ CuCO3‚ CuS‚ Zn(OH)2‚ ZnCO3‚ ZnS * Alums: [Al(OH2)6]2(SO4)3∙6H2O‚ Na[Al(OH2)6](SO4)2∙6H2O‚ K[Al(OH2)6](SO4)2∙6H2O‚ NH4[Al(OH2)6]2(SO4)2∙6H2O * Hydrated Ions: Na2CO3∙10H2O‚ Na2SO4∙10H2O
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