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