Puzzle – Bacteria




4. bacteria that require oxygen

6. stain used to dye bacteria so they can be classified

10. example of a photsynthetic, cyanobacterium that causes eutrophication 12. number of chromosomes in bacteria

14. rod shaped bacteria

19. bacteria living in very salty environments

20. corkscrew shaped bacteria that may cause disease such as syphillis

22. example of an enteric bacteria living in the human intestines

27. bacteria that live in very hot, acid environments such as hot springs

28. bacteria that gram stain purple

30. live in swamps and in sewage and produce methane gas

31. long whip-like tails for movement in some bacteria

32. term used to refer to most bacteria

34. prefix used when bacteria grow in chains

36. process where two bacteria join and exchange genetic material

38. found in the cell walls of archaebacteria



1. dormant stage of gram negative bacteria to help them survive harsh environments

2. bacteria that can carry on photosynthesis

3. bacteria that do not need oxygen

5. organisms without a nucleus or membrane-bound organelles

7. kingdom containing more ancient bacteria

8. short hairs on the cell wall of some bacteria for attachment

9. bacteria that feed on dead and decaying material

11. spherical shaped bacteria 13. kingdom containing most bacteria

15. sticky sugars on the capsule of some bacteria for attachment

16. process where a single bacterium divides to make two identical bacteria

17. type of environment in which archaebacteria live

18. bacteria found in soil that produce antibiotics 21. poisons made by some bacteria

23. outer covering of polysaccharides that protects some bacteria & helps them attach

24. bacteria that live in the intestines of some animals to aid digestion

25. protein-carbohydrate in the cell walls of eubacteria

26. used to classify bacteria

29. bacterial produced substances that stop the growth of other microorganisms

33. showed evidence that bacteria have existed for 3.5 billion years

35. prefix used when bacteria grow in grapelike clusters

37. bacteria that gram stain red to pink

39. example of a nitrogen-fixing bacteria that lives on the roots of plants

40. corkscrew shaped bacteria