prokaryotic cells. prokaryotic cell shapes bacillus coccus spirillus
TRANSCRIPT
Prokaryotic Cells
Prokaryotic Cell Shapes
Bacillus
Coccus
Spirillus
Prokaryotic Nucleoid: Prokaryotic “Chromosome”(and Plasmids)
Prokaryotic Cell Division:
“Binary Fission”
Gut Bacteria: Escherischia coli
Gut Bacteria: Lactobacillus acidophilus
Lactose (Milk Sugar) Lactic Acid
Fermentation
Gut Bacteria: “Ruminants”
“Rumen”
Pathogenic Bacteria: Bacillus anthracis
Streptococcus pyogenes
Pathogenic Bacteria: Streptococcus pyogenes
Borrelia burgdorferi
Pathogentic Bacteria: Borrelia burgdorferi
Pathogenic Bacteria: “STD’s”
Syphillus
Gonorrhoea
Chlamydia
Pathogenic Bacteria: Xanthomonas
Photosynthesizers: Anabaena(Cyanobacteria)
Light Energy
Chemical Energy
Chemosynthesizers
Tube Worms
Symbiotic Bacteria
Deep Sea Vent
Decomposers
Nitrogen Fixers: Rhizobium
Nitrogen Fixation: N2 NH4+
Alfalfa
Nitrogen Recyclers: Nitrosomonas, Nitrobacter
NH4+ NO2
- NO3-
Ammonium Nitrite Nitrate
Extreme Thermophiles
Extreme Halophiles
Methanogens
• Survive in Anaerobic Conditions• Many Use C02 (NOT O2) as an Electron Acceptor in Respiration• Produce Methane (CH4) as a Byproduct
Three Domains of Life:Eubacteria, Archaea, Eukarya
(Eubacteria, Archaea are Prokaryotic)
Prokaryotic Cells: Oldest Life in Fossil Record
3.5-3.6 Billion Years Old4.6 Billion Years Old
Putative Origin of Mitochondrion and Chloroplast
Cyanobacterium
Purple Non-Sulphur Bacterium