Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when molecular oxygen inhibits nitrogenase?
A)Ammonia production rate severely diminished✓
B)Methanogenesis becomes the dominant pathway
C)Hydrogen sulfide production dramatically elevates
D)Cellulose decomposition activity then increases
💡 Explanation
In aerobic conditions, oxygen irreversibly damages nitrogenase, because the enzyme contains an iron-sulfur cluster susceptible to oxidation; therefore, ammonia production plummets, rather than methanogenesis or alternative sulfur metabolism under anaerobic conditions.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome occurs when temperature significantly deviates from calibrated conditions for a pressure transducer?
- Which outcome occurs when high shear stress is applied to polyvinyl alcohol (PVA) hydrogel's crosslinked structure?
- Which outcome results because gravitational time dilation affects GPS satellites?
- Which consequence results when a water-glycerol mixture exhibits a depressed freezing point?
- Which outcome occurs when engine oil viscosity increases excessively?
- Which outcome results after prolonged exposure to iodine-131?