MIC I - General Information General Information 0....

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Unformatted text preview: General Information General Information 0. Microbiology in our lives 0. What is a microorganism? 1. the terms microbe , microscopic organism, microorganism & germ all refer to the same thing 1. microscopic organisms - 2. germ - somewhat old-fashioned 3. microbe micro organism used in biology Microbes and Human Disease: Microbes and Human Disease: An important topic in this course! An important topic in this course! 4. normal flora- live symbiotically with our body, in most cases doesnt cause any harm 10,000 bacteria for every cell in your body 5. microbial pathogens and infectious disease Microbes and Human Welfare Microbes and Human Welfare 6. Recycling of nutrients breaking down organic matter, some bacteria can degrade oil into water and oxygen 7. Sewage treatment using microbes 8. Bio remediation using microbes 9. Insect pest control, protection crops 10. Biotechnology & genetic engineering study genes by injecting into bacteria cell. Diabetes, bacteria used to make insulin Naming and Classifying Microorganisms Naming and Classifying Microorganisms 0. Nomenclature 1. Carolus Linnaeus developed this system 2. All life forms classified by this system 11. name identifies relationships to all other organisms Taxonomy Taxonomy 2. Hierarchial classification of organisms 3. Until recently, scientists divided all of life into 5 kingdoms which reflected the two cell types 12. 12. Prokaryotes small cells, no nucleus Prokaryotes small cells, no nucleus 0. Monera 13. Eukaryotes- cells with nucleus Eukaryotes- cells with nucleus 1. Fungi 2. Animalia 3. plantae 4. Protista New Organisms! New Organisms! 3. In the 1970s Carl Woese showed genetic differences in sequences of 16S rRNA (ribosomal RNA) indicating a different type of prokaryotic cell 14. This reflected differences that had been seen at the biochemical level 4. 4. Archaebacteria- outdated, achae Archaebacteria- outdated, achae Domains Domains 5. 3 Domains (most general category) 15. Eukarya Eukarya (eukaryotes true nucleus) 16. Archaea & Bacteria Archaea & Bacteria (prokaryotes - prenucleus)- no nucleus 6. 4 Kingdoms of Eukarya 17. Protista Protista unicellular eukaryotes- most scientist no longer recognize, too general 18. Fungi Fungi unicellular & multicellular eukaryotes 19....
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MIC I - General Information General Information 0....

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