1. Bacterial Processes Food SourceRespirationReproduction Favorable conditions Survival

2. Food Source Photosynthesis – make food using sunlight energy

3. Food Source Chemosynthesis – make food using energy from inorganic chemicals Hydrogen sulfide

4. Food Source Parasites – living on or in another living organism

5. Food Source Saprophytes – live on a dead organism and decompose it

6. Respiration The breakdown of glucose (food) to release energy AerobicAnaerobic

7. Respiration Aerobic – use O₂

8. Respiration Anaerobic – don’t use O₂ hydrogen sulfide and methyl mercaptan

9. Reproduction AsexualSexual Most bacteria can reproduce either way

10. Reproduction Asexual – binary fission (split in two) – most common means of reproduction

11. Reproduction Sexual – produce genetic variety ConjugationTransformation

12. Conjugation The exchange of genetic material (plasmids) between 2 cells

13. Conjugation Example http://www.hhmi.org/biointeractive/bacterial -conjugation http://www.hhmi.org/biointeractive/bacterial -conjugation

14. Transformation Absorption of DNA from the environment

15. Favorable Conditions Warmth Moisture Darkness Food

16. Survival Endospores – a dormant stage of a bacterium to survive unfavorable conditions

17. Advantage over others? Endospore

18. Negative Effects of Bacteria

19. Pathogenic – disease causing Bacterial Diseases of Humans

20. Strep throat

21. Diptheria

22. Staph Infection

23. Tetanus

24. Gangrene

25. Pink Eye

26. Acne

27. Tooth Decay

28. Viral or Bacterial Disease? Tetanus

29. Viral or Bacterial Disease? Smallpox

30. Viral or Bacterial Disease? Measles

31. Viral or Bacterial Disease? Pinkeye

32. Viral or Bacterial Disease? Warts

33. Viral or Bacterial Disease? Tooth decay

34. Viral or Bacterial Disease? Staph Infection

35. Viral or Bacterial Disease? AIDS

36. Viral or Bacterial Disease? Strep Throat

37. Viral or Bacterial Disease? Mono

38. Viral or Bacterial Disease? Common Cold

39. Viral or Bacterial Disease? Acne

40. Bacterial Diseases Endotoxins – poisonous chemicals inside the bacteria that aren’t released until the bacteria die Example – typhoid fever, UTI

41. Bacterial Diseases Exotoxins – poisonous chemicals released from living bacteria as waste Example – acne, tetanus

42. Food Spoilage Bacteria eat the food and release bad tasting and/or poisonous chemicals

43. Prevention Refrigerate, freeze, boil and seal, dehydrate, salt

44. Benefits of Bacteria

45. Human Body E. coli lives in the colon and breaks down food

46. Human Body Bacteria cover our skin and eat bad organisms

47. Fuels Bacteria produce alcohol and methane which are burned for energy

48. Foods Bacteria help make cheese, cottage cheese, and yogurt

49. Other Clean up oil spills

50. Other Sewage treatment

51. Other Make medicines Insulin antibiotics