Bacteria

1
Bacteria

• The Importance of Bacteria
• (Benefits and Harmful Effects)
• The Good, the Bad, and The Ugly

2
Benefits

• Breakdown waste products and dead organisms
  (release chemicals to help with the breaking
  down)
• Digest food in the intestines of other organisms
  (bacteria helps cows and humans to digest food)
• Nitrogen fixation (humans need Nitrogen, bacteria
  changes the form of nitrogen so we can use it)

3

• Making food for example yogurt, cheese, soy
  sauce, vinegar
• Production of leather, certain chemicals, and
  antibiotics
• Research (grow bacteria and study how it
  reproduces)

4
Harmful Effects

• Food spoilage (food poisoning botulism)
• Water pollution (depletes the lakes of oxygen)
• Causes diseases parasites (live in a host)
• Examples strep throat
• tetanus
• cholera
• tooth decay
• use antibiotics to kill these bacteria