Microbial Nutrition & Growth

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Across
  1. 4. Requires low O₂ concentration.
  2. 7. Uses light energy to synthesize organic compounds from CO₂.
  3. 8. Uses organic compounds for both carbon and energy.
  4. 9. Optimal growth 20–40°C; includes most human pathogens.
  5. 10. Optimal growth < 15°C; cannot grow > 20°C.
  6. 12. Does not use O₂ but can tolerate it.
  7. 15. O₂ is toxic; cannot survive in its presence.
  8. 17. Requires O₂ for growth.
  9. 18. A microorganism that uses CO₂ as a carbon source to synthesize its own organic compounds.
  10. 20. Derives nutrients from living host cells or tissues, often causing harm.
Down
  1. 1. Requires high CO₂ concentration.
  2. 2. Can grow with or without O₂.
  3. 3. Optimal growth > 45°C; extreme thermophiles can survive 80–121°C.
  4. 5. Thrives under high pressure; ruptures at normal pressure.
  5. 6. Uses inorganic chemicals as an energy source and CO₂ as carbon source.
  6. 11. Tolerates or requires high salt concentrations.
  7. 13. Can survive short-term high temperatures.
  8. 14. Optimal growth 15–30°C; can grow in refrigerated foods.
  9. 16. Feed on dead organic matter; recycle nutrients in the environment.
  10. 19. A microorganism that obtains carbon from organic molecules.