Discussion
Nitrogen fixation by free-living aerobic bacteria such as Azotobacter is limited mainly by
Answer: A
Fixing nitrogen is expensive in energy, and a free-living organism must pay for it from soil organic carbon, which is usually scarce. A nodulated Rhizobium avoids the problem because the host supplies sugars directly, which is why symbiotic fixation contributes so much more.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development