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Prokaryotes

Biology 106 Final Exam

QuestionAnswer
Nitrogen Fixation Covert atmospheric Nitrogen (N2) to Ammonia (NH3) Incorporate into Amino Acids
Why not reproduce a colony that outweighs earth in 3 days? Exhaust nutrient supply Poison with metabolic wastes Consumed by other organisms Antibiotic chemicals by other microorganisms stopping them
Internal and Genomic Organization lack complex compartamentalization (some have specialized membranes that perform metabolic functions, by infoldings of plasmamembrane) 1/1000 as much DNA as ProK Few proteins associated with DNA No Nucleus, Nucleoid Region
Flagellum Composed of Protein Flagellin Helical Gram+ have 2 basal body rings Gram- have 4 rings Driven by proton motive force
Erythromycin Tetracycline Ribosomal Difference: Eukaryote vs. Prokaryote Prokaryotic ribosomes smaller and differ in protein and RNA content Both bind and block protein synthesis in prokaryotes and not eukaryotic cells due to size of ribosomes
Plasmid smaller rings of DNA in bacteria provide resistance to antibiotics direct metabolism of rarely encountered nutrients Cell can Survive W/O Plasmid, just plasmid increases chance of survival, e.g.against antibiotics Replicate independent of chromosome
Created by: madhatter
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