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Chapter 1 - Microbial World and You Chapter 1 What is...

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Microbial World and You Chapter 1
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What is Microbiology? Micro - too small to be seen with the naked eye Bio - life ology - study of
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Organisms included in the study of Microbiology 1. Bacteria 2. Protozoans 3. Algae 4. Parasites 5. Yeasts and Molds Fungi 6. Viruses Bacteriology Protozoology Phycology Parasitology Mycology Virology Microorganisms - Microbes - Germs
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5 Kingdoms of Living Organisms 1. Animalia 2. Plantae 3. Fungi 4. Protista 5. Monera - Bacteria and Cyanobacteria Eukaryotic vs. Prokaryotic
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5 Characteristics of Life 1. Cells 2. Maintain structure by taking up chemicals and energy from the environment 3. Respond to stimuli in the external environment 4. Reproduce and pass on their organization to their offspring 5. Evolve and adapt to the environment
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Taxonomic Classification Kingdom Phylum Class Order Family Genus species Man Animalia Chordata Mammalia Primate Hominidae Homo sapien
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Taxonomic Classification Kingdom Phylum Class Order Family Genus species Cat Animalia Chordate Mammalia Carnivora Felidae Felis domestica
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Binomial System of Taxonomic Classification Use only the Genus and species Homo sapien Felis domestica Escherichia coli Genus and species are either underlined or italicized Genus is always capitilized species is never capitilized
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Classification System 3 Domains 1978 Carl Woese 1. Bacteria Unicellular prokaryotes with cell wall containing peptidoglycan 2. Archaea Unicellular prokaryotes with no peptodoglycan in cell wall 3. Eukarya Protista Fungi Plantae Animalia
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Bacteria - what comes to mind? Diseases Infections Epidemics Food Spoilage Only 1% of all known bacteria cause human diseases About 4% of all known bacteria cause plant diseases 95% of known bacteria are non-pathogens
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Microbes Benefit Humans 1.Bacteria are primary decomposers - recycle nutrients back into the environment (sewage treatment plants) 2. Microbes produce various food products cheese, pickles, sauerkraut, green olives yogurt, soy sauce, vinegar, bread Beer, Wine, Alcohol
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3. Microbes are used to produce Antibiotics Penicillin Mold Penicillium notatum 1928 Alexander Fleming
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4. Bacteria synthesize chemicals that our
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