Introduction: During this unknown lab report various test were performed to differentiate microbes from each other and to compare metabolic and biochemical process. The gram stain distinguishes between Gram positive and Gram negative bacteria based on the composition of the cell wall. The Gram stain procedure distinguishes between Gram positive and Gram negative groups by coloring these cells red or violet. Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan
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Salmonella [pic] Image from: http://www.healthhype.com/wpcontent/uploads/Prokaryote_cell_diagram_bacterial_structure.png 1. Describe the structure of the micro-organism Salmonella is a miniature bacterium which is rod shaped. It has diameters of around 0.7 to 1.5 µm‚ lengths from 2 to 5 µm‚ and flagella that flow in all directions. They are chemoorganotrophs (a primary nutritional group)‚ getting their energy from oxidation (the interaction between oxygen molecules and other substances)
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Salmonella is a bacillus bacteria from the Enterobacteriaceae family which can be devided into two species which is Salmonella bongori and Salmonella enterica‚ and another six subspecies can be divided from the species of Salmonella enterica‚ which are enterica‚ salamae‚ arizonae‚ diarizonae‚ houtenae and indica. Salmonellae are found globally in all types on animals‚ and also in the environment. From an article researched‚ proposed by C. Wray and A. Wray‚ it is stated that one of the main habitat
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Bacterial Contamination April 15‚ 2013 Bacteria Contamination The definition of bacterial contamination is food contamination refers to foods that are spoiled or tainted because they either contain microorganisms‚ such as bacteria or parasites‚ or toxic substances that make them unfit for consumption This is very serious and people should take more precaution‚ food contamination is a serious because it results in foodborne diseases that each year affect an estimated seventy-six million
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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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LAB Report #3 Introduction: In this lab we have focus on Isolation of bacteria from environment. Microorganisms are found throughout the environment: in the air and water; on the surface of any object such as clothes‚ walls‚ furniture; in soil and dust; and on and in our own bodies (skin and mucous membranes). In order to demonstrate the ubiquity and diversity of microbes in the environment‚ samples from immediate areas of the environment and/or from your body will be obtained and cultured
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Name Date Chapter 2 Practice Multiply and Divide Fractions Circle the letter of the answer you choose. 3 1 13 4 Ron cut off __ of a board. He took __ of the 7 16 cut piece to make a desktop. Ron wants to know about how much of the original board was made into the desktop. Which method should he use to estimate the amount used? 13 4 1 A. Round __ to 1 and __ to __‚ and then 7 2 16 1 multiply __ × 1. 2 13 4 B. Round __ to 1 and __ to 1‚ and then 7 16 3 3 4 12 Val explains that 4
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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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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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Lab 11 Methodology By using aseptic‚ a little cultured bacteria was inoculated on the TSA agar. A quadric streak was making. Inoculation loop was heated and keep it cold for a while before the next quadratic streak. Six agar plates were observed for 24 hour at temperature of 30ºC. Choose one from the dense colony and make a sub-culture on the new agar plate. The step was repeated to get a single colony‚ which is pure colony. a) Sequestration of bacteria from fish organs Methodology
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