1. *Growth and Reproduction
*Some bacteria can divide every 20 minutes
If there were unlimited resources, 1 bacteria could grow into a mass 4000 times the mass of earth in just 48 hours!!!

2. Bacteria
What is the role of bacteria in our world? List everything you know

3. Bacteria Are living: Made up of cells Have DNA Grow and develop
Use energy
Homeostasis
Reproduction

4. B
SMART

5. 1) Binary Fission Binary Fission:
Asexual reproduction where organism replicates DNA and divides in half
Produces two identical daughter cells

6. Reproduction
Binary fission

7. 2) Conjugation Conjugation: (“bacterial sex”)
Sexual reproduction where organism exchange genetic information

8. B
SMART
Come back!!!!!

9. Shapes S
Cocci
Bacilla
Spirilla

10. Shapes S S S S S Streptococus Streptobacilla Streptospirilla
Staphlococus
Staphlobacilla
Staphlospirilla

11. Some are BAD and make us ill

12. Streptococcus
Strep throat
Pnemonia

13. Tetanus (lock jaw) E. coli Affects nervous system
Some in our intestines … others are pathogens that can cause kidney failure

14. Bacteria intestines decomposers antibiotics
Can be bad … but can be good
intestines
Feel better with??
decomposers
antibiotics

15. Importance of Bacteria

16. Decomposers
Break down things into simpler materials and release into the soil
*Help breakdown sewage treatment water

17. Nitrogen Fixers Converting nitrogen gas into a form plants can use
Allows nitrogen to cycle through biosphere

18. Other Uses E. coli in our intestines Oil digestion
Make vitamins that we cannot make
Oil digestion

19. Archaebacteria!

20. Archaea
Lack peptidoglycan walls and have different membrane lipids than Eubacteria
DNA sequences are closer to Eukaryotes than Bacteria

21. Extremophiles
Extremophiles:
Live in extreme environments!

22. Halophilic: salt loving

23. Thermophilic: heat loving