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25-prokaryotoutl - BIOL V03 Prokaryotes Bacteria...

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BIOL V03: Prokaryotes: Bacteria & Archaea (SBM9 - Ch 25) © Copyright 2011 by Marta D. de Jesus (Skip transformation, transduction, conjugation in 25.2 for now) I. Prokaryotes A. divided between 2 domains B. reminder of general prokaryotic cell structure C. often have cell walls 1. peptidoglycan 2. Gram positive 3. Gram negative lipid A = endotoxin mycoplasmas pseudomurein endospores D. beyond cell wall 1. capsule/slime layer 2. small protein filaments: a. pili: b. fimbriae E. for motility 1. flagella 2. axial filaments 3. gas vesicles 4. gliding F. genomes & genetic recombination 1. chromosomes 2. plasmids antibiotic resistance G. Extremely successful!
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II. Nutritional diversity (for any/all living thinga) major modes 1. Energy source 2. C source 3. combinations of these a. chemoheterotrophs b. chemoautotrophs c. photoheterotrophs d. photoautotrophs: D. oxygen use Aerobe vs. anaerobe Facultative vs. obligate E. extremophiles thermophiles F. most important group symbioses mutualism commensalism parasitism human microbiota harmful interactions exotoxins vs.
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