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Bacteria Notes

Bacteria Notes. Plant. Fungi. Protista. Animal. Moneran. Prokaryotes. Bacteria CHARACTERISTICS. 1. Have a protective cell wall 2. Prokaryote 3. Unicellular Can be heterotroph OR autotroph 5. Most belong to Kingdom Eubacteria. Kingdom Archaebacteria.

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Bacteria Notes

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  1. Bacteria Notes

  2. Plant Fungi Protista Animal Moneran Prokaryotes

  3. BacteriaCHARACTERISTICS 1. Have a protective cell wall 2. Prokaryote 3. Unicellular • Can be heterotroph OR autotroph 5. Most belong to Kingdom Eubacteria

  4. Kingdom Archaebacteria • Also unicellular and prokaryotic • Live in extreme environments: • Hot springs • Brine pools (salt pools) • Deep ocean vents (volcanic vents)

  5. SHAPES • Three Shapes- 1.Bacilli (rod)bacillus 2.Cocci (round)coccus 3.Spirilla (spiral)spiriallum

  6. Gram Staining • Gram staining is used to identify bacteria with extra membranes. These bacteria are more resistant to damage (antibiotics). • Gram positive stain purple • Gram negative (extra membrane) stain red

  7. REPRODUCTION • Asexual – binary fission (single cell splits into 2 identical new cells) • Sexual – conjugation – trading DNA

  8. How can bacteria get into our body to make us sick? through cuts, breathe in airborne bacteria, eat contaminated food What are antibiotics? chemical that slows bacterial growth or kills bacteria How do antibiotics work? prevent bacteria from forming a cell wall

  9. MOBILITY (movement) 1. Most bacteria do NOT move 2. Few have a flagella - tail-like structure

  10. MOBILITY (movement) 3. Transferred by water, air, food, insects, and human contact

  11. HELPFUL BACTERIA 1. Food products ( cheeses, yogurts, chocolate) 2. Digestion of plant eaters (cow rumen)

  12. HELPFUL BACTERIA 3. Helps dead things decay 4. Eats oil spills 5. Eats Sewage

  13. HARMFUL BACTERIA 1. Pathogenic(disease-causing) M. meningitis , E. coli or Salmonella(food poisoning ), B.anthracis (anthrax), C.botulina (botulism), Flesh-eating bacteria Strep infection necratizing faciaitis

  14. HARMFUL BACTERIA • Infections (from injuries) 3. Body odor & bad breath Cutting board Kitchen sponge Tooth plaque

  15. INTERESTING FACTS - BACTERIA • Bacteria canMutate - to change – allowing bacteria become resistant to antibiotics • Bacteria develop a tolerance to a drug(s)so they can survive • We can prevent by not overusing and by completing the precription given by doctor

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