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Bacteria PowerPoint Presentation

onlinesearch By : onlinesearch

On : Mar 14, 2014

In : Health & Wellness

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  • Slide 1 - Bacteria Our invisible friends
  • Slide 2 - Bacteria are prokaryotes Pro – before Karyon – nucleus The simplest forms of life are prokaryotes. Earth’s first cells were prokaryotes.
  • Slide 3 - Lots of Them! Prokaryotes are Earth’s most abundant life forms. They can survive in many environments. They can get energy from many different sources.
  • Slide 4 - Prokaryote Review Mostly single-celled No nucleus or organelles Circular chromosomes Cell walls Reproduce mostly asexually Anaerobic or aerobic Heterotrophic or autotrophic
  • Slide 5 - Archaebacteria Methane producers – anaerobic Halophiles Halo = salt Philia = love Thermophiles Thermo = heat
  • Slide 6 - Eubacteria Parasitic heterotrophs (Streptococcus) Saprophages Sapro = death Phage = eat Cyanobacteria (blue-green algae) Photosynthetic Chemosynthetic autotrophs (Rhizobium)
  • Slide 7 - Bacteria are Named by Shape Cocci (ball-shaped) Streptococcus mutans Bacillus (rod-shaped) Clostridium botulinum Spirilli (spiral-shaped) Treponema palladium
  • Slide 8 - ppt slide no 8 content not found
  • Slide 9 - Germ Theory of Disease Joseph Lister – Aseptic Techniques Robert Koch – Germ Theory A specific microorganism causes a specific disease
  • Slide 10 - ppt slide no 10 content not found

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