come from only a few particular drugs. Antibiotics are divided up into three major divisions‚ such as: eukaryotic molds and bacteria that form spores as well (Todar 2011). A small amount of the antibiotics we use today are formed by Bacillus‚ the endospore-forming bacteria. The others are produced by the molds‚ mostly Penicillium and Cephalosporium (Tortora 2010). The major subcategories of antibiotics are Penicillins‚ Cephalosporins‚ Macrolides‚ Fluoroquinolones‚ Sulfonamides‚ Tetracyclines‚ and
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soil and/or water where it can lie dormant until contact with host. Portal of entry can be from a cut‚ inhaled‚ ingested or a biological vector. An open wound is always susceptible to infection. Being in an environment where there is potential for endospores can lead to open lesions and necrosis of surrounding skin. Livestock‚ feed lots‚ and processing plants of animals and feed‚ are the areas of most concern and the source of the infection.
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Compound Microscope Parts A high power or compound microscope achieves higher levels of magnification than a stereo or low power microscope. It is used to view smaller specimens such as cell structures which cannot be seen at lower levels of magnification. Essentially‚ a compound microscope consists of structural and optical components. However‚ within these two basic systems‚ there are some essential components that every microscopist should know and understand. These key microscope parts are illustrated
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COVENANT UNIVERSITY Department of biological sciences PROGRAM: MICROBIOLOGY COURSE: MICROBIAL TAXONOMY‚ NOMENCLATURE AND IDENTIFICATION CODE: MCB 122 TOPIC: CLASSIFICATION OF BACTERIA AND VIRUSES PROJECT PARTICIPANTS OBUEKWE CHUKWUEMEKA 12CQ014230 OKAFOR SANDRA-EMMANUELLA 12CQ014231 OLOWOFELA OLUWATOYIN 12CQ014232 OSITA-ORAH ANTHONY 12CQ014233 SASORE YEWANDE 12CQO14236 NWOBI CHIZITERE 12CQ014229 OYEKAN TOSIN 12CQ014235 SOREMEKUN MAYOMIKIUN 12CQ014238 SHODEKO TOBI 12CQ014237 INTRODUCTION TO THE
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Hartpury College Fdsc Equine Science Animal Microbiology Diagnosis and treatment of disease UIN XGJ-10-1 Amanda Finch Date Set: 20th September 2010 Date due: 17th November 2010 Contents page Page Title page i List of contents
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Traditional View: proks. vs. euks. Size Nucleus Organelles Genetic material Reproduction Reproduction and Adaptation Prokaryotes reproduce quickly by binary fission and can divide every 1–3 hours Many prokaryotes form metabolically inactive endospores‚ which can remain viable in harsh conditions for centuries Prokaryotes can evolve rapidly because of their short generation times Reproduction in Prokaryotes? Fig. 12.12 Binary fission Reproduction without sex 3 processes that produce recombinant
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Explain why endospores are capable of surviving for a very long time. An endospore is a structure that allows certain bacterial species to be able to survive during adverse conditions. Endospores can withstand extremes in heat‚ drying‚ freezing‚ radiation and chemicals that would kill most other cells. Their survival is due to their ability to be heat resistant is due to a high content of calcium and dipicolinic acid. These compounds remove water and leave the cell dehydrated. Endospores also have
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Bacterial cells are Prokaryotic cells. These cells have several internal structures and surface structures. The cell walls are of two types‚ gram positive and gram negative. Out of all the structures‚ 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-
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My journey to the unknown started about three weeks before the end of my microbiology class at Brunswick Community College. This journey started out with a media plate cultured with an unknown species of bacteria. I was then instructed by my professor to use all of my previous knowledge to identify the unknown bacterial pathogen. This lab led me to master my skills of using the Gram stain‚ testing for catalase‚ testing for coagulase and using the oxacillin screen. Now I am going to take you with
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of Bacillus subtilis colonies on agar plates”. FEMS Microbiology Ecology 13: 159-167 4. Anna Csillag‚ 1972. “Appearance of acid-fast rods in cultures of mycococcus luteus”. Tubercle and Lung Disease 53: 221-225 5. James A. Bastock‚ Michelle Webb and Jane A. Grasby‚ 2007. “The pH dependence of the Escherichia coli RNase HII-catalysed Reaction Suggests that an Active Site Carboxylate Group Participates Directly in Catalysis”. Journal of microbiology 368: 421-433 6. Lloyd D. Witter‚ 1961. “Psychrophilic
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