Question
Represent schematically the nitrogen cycle. Name the organisms involved in this cycle.
✓
Answer
- Nitrogen fixation:
- Free-living cyanobacteria-Nostoc, Anabaena.
- Free living aerobic bacteria-Azotobacter, Beijernickia.
- Free-living anaerobic bacteria-Clostridium, Rhodospirillum.
- Symbiotic bacteria-Rhizobium, Frankia.
- Ammonification: Pseudomonas.
- Nitrification: Nitrosomonas, Nitrococcus, Nitrobacter.
- Denitrification: Thiobacillus, Pseudomonas.
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