1. Bacteria
Biology
LHS

2. Two Kingdoms Eubacteria Live almost everywhere
Cell wall with peptidoglycan

3. Bacteria Structure

4. Archaebacteria Cell wall without peptidoglycan
DNA more similar to eukaryotes than eubacteria.

5. Archaebacteria

6. Bacterial Shapes
Bacillus
Coccus

7. Bacterial Shapes
Spirillum

8. Metabolism
Heterotrophs
Autotrophs
Photoautotrophs
Chemoautotrophs

9. PHOTOAUTOTROPH
Derive energy from sunlight to convert carbon dioxide and water into organic molecules.

10. Cyanobacteria

11. Cyanobacteria

12. CHEMOAUTOTROPHS Derive energy from chemical reactions Hydrogen sulfide
Ferrous iron
Ammonia

13. Chemoautotrophs

14. Oxygen needs Obligate aerobes Require oxygen Obligate anaerobes
Live in absence of oxygen
Facultative anaerobes
Survive with or without oxygen

15. Growth and Reproduction
Three modes of reproduction
Binary Fission
Conjugation
Spore formation

16. Binary Fission

17. Conjugation

18. Spore Formation

19. Importance of bacteria
Decomposers
Waste management
Bioremediation
Nitrogen fixation
Food production
Human health

20. Waste Management

21. Bioremediation

22. Nitrogen Fixation

23. CHEESE