The physical-chemical environment of microbes

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  1. 3. What microbial form enables survival without water? (5)
  2. 5. Which factor most limits phototrophs in polar sea ice? (5)
  3. 7. Which microbes oxidize iron for energy under acidic conditions? (11)
  4. 9. What ultimately defines whether an environment is reducing or oxidizing? (9)
  5. 10. What stress arises when water activity differs inside and outside cells? (7)
  6. 11. Which pigments protect microbes from harmful light? (11)
  7. 13. Which pigments give halophilic environments a red color? (10)
  8. 14. Where is the world’s deepest ocean trench located? (7)
  9. 18. What property of water makes it a universal solvent? (8)
  10. 19. Which microbes survive best in very high temperatures? (12)
  11. 20. What lipid trait helps psychrophiles and piezophiles survive extremes? (11)
  12. 21. Which microbes can live without oxygen, but tolerate its presence? (12)
  13. 26. What type of enzymes are specially adapted to extreme temperatures? (12)
  14. 28. Which element drives positive redox potential in oxic habitats? (6)
  15. 29. Which process dominates molecular movement at the microbial scale? (9)
  16. 30. Which microbes are adapted to both cold and high pressure? (13)
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  1. 1. Which microbes grow only at high pressure in the deep ocean? (11)
  2. 2. What aquatic condition caused by warming reduces nutrient supply? (14)
  3. 4. Which microbes use light energy but do not fix carbon? (17)
  4. 6. Where is the highly acidic Rio Tinto river located? (5)
  5. 8. Which microbes thrive at very low temperatures such as in Antarctica? (13)
  6. 12. Which metabolic process is often more temperature-sensitive than photosynthesis? (11)
  7. 15. What nitrogen form is most available to microbes near neutral pH? (8)
  8. 16. What DNA damage is caused by UV light bonding pyrimidines? (5)
  9. 17. What small protein helps repair UV-damaged DNA in microbes? (4)
  10. 22. Which domain of life dominates extreme salt lakes? (7)
  11. 23. What property of water is much higher than in air, affecting microbes? (9)
  12. 24. Which wavelength range of light is most damaging to microbes? (11)
  13. 25. Which enzymes protect microbes from reactive oxygen species? (11)
  14. 27. What equation describes redox potential in relation to electrons? (6)