MICROBIOLOGY What is the purpose of general growth media‚ selective media‚ and differential media? Give examples of each. General Purpose Media General Purpose media is designed to grow most organisms and do not contain growth inhibitors. Standard Methods Agar and Blood Agar Bases are examples of general purpose media. Differential Media Differential media contain a component that allow an observable change when a specific chemical reaction takes place. Simmons Citrate Agar is an example
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| Gram Negative Unknown | Biology 3444-006 | | Lena Wallace | 11/7/2011 | | Abstract: The purpose of this lab was to identify an unknown bacteria culture using differential tests. The identification of the unknown culture was accomplished by identifying the bacteria based on its specific metabolic characteristics and morphology. It is suggested that culture 11 is a sample of Enterobacter aerogenes. Introduction: This experiment was centered on metabolic and biochemical testing
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Guide for Exam 1 Chapter 1: 1. What is a “microbe”? What groups of organisms are included in this category? Microbes (microorganisms) are minute living things that individually are too small to be seen with the unaided eye the group includes bacteria‚ fungi‚ protozoa‚ and microscopic algae‚ viruses Only minority of microorganisms are pathogenic(disease-producing) 2. What are some of the benefits provided by microbes? Decompose organic waste‚ producers in the ecosystem by photosynthesis
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Exploring the diversity‚ abundance‚ and variability of diatom-associated bacteria in the oligotrophic ocean I. Abstract The ecology of diatoms may be better explained by conceptualizing them as composite organisms consisting of the host cell and its bacterial associates. Our previous investigated diatom-bacterial interactions at the single-cell level found that bacterial assemblages varied substantially even among closely related individual host cells. The bacterial assemblages associated with single
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cell. Luckily‚ these chromosome dimers can be resolved back into monomers by a site-specific recombination carried out at the dif site prior to cell divison. XerC/XerD recombination is an example of site-specific recombination found in almost all bacteria. Three critical factors are involved in this recombination reaction: the DNA translocase FtsK‚ tyrosine recombinases XerC/XerD and the specific site dif. The chromosome dimer resolution is done after the activation of XerD by the γ sub-domain of
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BACTERIA Period: 4 Characteristics: 3 major shapes Cocci Basilli Spirilla 3 major components Mesosomes flagella Plasmids Growing Up: Bacteria can obtain energy through phototrophs(sunlight)‚ lithotrophs(inorganic compounds)‚ and organotrophs(organic compounds) Marriage/Reproduction Binary Fission: The process by which all bacteria reproduce. It results in the separation of a single cell into two. Transformation: genetic alteration
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attenuated vaccine - To reduce the virulence of a pathogenic bacterium or virus by passing it through a non-native host or by long-term subculture. caposemere - A subunit of the virus capsid shaped as a triangle or disc. Capsule - In bacteria‚ the loose‚ gellike covering or slime made chiefly of simple polysaccharides. This layer is protective and can be associated with virulence. Carrier - A person who harbors infections and inconspicuously spreads them to others. Also‚ a chemical agent
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Increasing Fiber in Rice Pilaf Arcelay‚ Marilyn March 30‚ 2007 FOS 4041L Dr. Dixon Introduction Obesity is a word that everyone is currently familiar with. The media and health professionals have been working tirelessly to make the general public aware of its prevalence and detriments to society. With the staggering statistics of 32.2% prevalence in adults and a range of 13.9% to 18.9% prevalence in children and adolescents‚ these outstanding numbers stand
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INTRODUCTION Many infectious diseases caused by infectious agents‚ including bacteria‚ fungi‚ viruses and parasites‚ have plagued human existence CITATION Kon97 \l 1033 (Koneman‚ 1997). Thus the identification of bacteria becomes all the more important in the search for medicines and cure. Identification of bacteria is a multistep process because while some preliminary guesses can be made from the morphology of microbes on various differential agars‚ various other tests need to be done to differentiate
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Collection‚ Observation‚ and Analysis of Microorganisms in the human environment Introduction The necessity and value of collecting‚ identifying‚ and analyzing the various microbes regularly encountered in the daily human environment becomes quite apparent when one gains even
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