Unit 6 Microbial Growth: Biofilms, Growing a Pure Culture, Closed System, Temperature, Oxygen, Osmolarity and pH

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Across
  1. 1. a group of 1 million cells
  2. 2. when cells communicate chemically
  3. 3. cells detach to create new biofilms
  4. 6. sticky matrix secreted by cells that supports biofilm structure
  5. 7. phase where cells from pure colony synthesize enzymes required for cell growth
  6. 8. -phile where bacteria live in 10C - 45C
  7. 12. cells attach to the surface; driven by fimbrae
  8. 16. -phile where bacteria live in pH values between 5.5 and 7.9
  9. 18. bacteria grow with and without O2
  10. 20. cells multiply, and EPS is produced
  11. 22. converts hydrogen peroxide into water
  12. 23. -phile where bacteria live in -5C to 15C
Down
  1. 1. system where bacteria will not continue to grow exponentially forever but wil stop once the limited nutrients have been consumed
  2. 4. dismutase converts 2 superoxide molecules into O2 and H2O2
  3. 5. phase where cell division occurs at a continuous rate
  4. 9. electron acceptor where all organisms that utilize energy require it in their electron transport chain
  5. 10. other cells attach and multiply as eps grows
  6. 11. halophile that needs to live in more than 15% NaCl
  7. 13. converts 2 H2O2 molecules into O2 and H2O
  8. 14. phase where growth in limited and cells beging to die the same time that are growing
  9. 15. phase where number of viable cells die off
  10. 17. -phile where bacteria live in pH values less than 5
  11. 19. -phile where bacteria live in 40C to 80C
  12. 21. halotolerant where bacertia cannot tolerant NaCl and live in pure water conditions