Microbial Nutrition & Growth

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Across
  1. 1. “cell eating”
  2. 4. one partner benefits; other is harmed
  3. 8. organic subs are energy source; CO2 is carbon
  4. 10. organism that uses CO2 as it’s carbon source
  5. 11. two organisms live together in close partnership
  6. 12. organism that obtains carbon in organic form
  7. 13. aka trace elements like Mn, Zn, Ni
  8. 15. ___ do not require oxygen but use it when present
  9. 17. required in ,arge amounts ( C,H,O)
  10. 18. one partner benefits; other is neither harmed orbenefitted
  11. 20. major component of microbial cells
  12. 23. any substance that must be provided to an organism
  13. 24. organisms grow best in acidic environments
  14. 25. disease-causing microbe
  15. 26. first phase of bacterial growth curve
  16. 28. a sign of increasing microbial growth
  17. 30. feed on organic debris from dead organisms
  18. 31. ___ time required fo a complete fission cycle
Down
  1. 2. microbes that grow in the absence of oxygen
  2. 3. Bacterial division is by binary ___
  3. 5. organisms that thrive in alkaline conditions
  4. 6. microbes that engage in photosynthesis
  5. 7. a mutually beneficial relationship
  6. 9. grow best at higher CO2 levels
  7. 14. obtains energy from chemical compounds
  8. 16. second phase of bacterial growth curve
  9. 19. third phase of bacterial growth curve
  10. 21. majority of medically significant microbes
  11. 22. fourth phase of bacterial growth curve
  12. 27. organisms that cannot grow without oxygen are ___aerobes
  13. 29. organisms that grow best in high salt conditions