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Nitrogen Fixation Questions

Practice 9 Nitrogen Fixation questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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9
Total Questions
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6
Easy
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3
Medium
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Hard
Practice by Exam:Biology(9)

About Nitrogen Fixation — practice questions, PYQs & concepts

Nitrogen Fixation is a frequently-tested topic on Biology. ExamTest.live currently lists 9 Nitrogen Fixation questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Nitrogen Fixation weight in competitive exams

Across our Nitrogen Fixation question bank, the largest sources are Biology (9). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 6 easy Nitrogen Fixation questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
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  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Nitrogen Fixation Questions(1–9 of 9)

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Q1easymcqBiologyNEET 20222026
Which one of the following produces nitrogen fixing nodules on the roots of Alnus?
Q2mediummcqBiologyBiology
0% accuracy
The function of leghaemoglobin in the root nodules of legumes is:
Q3mediummcqBiologyBiology
0% accuracy
A prokaryotic autotrophic nitrogen fixing symbiont is found in:
Q4mediummcqBiologyBiology
Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism?
Q5easymcqBiologyBiology
Nitrogen fixation in root nodules of Alnus is brought about by:
Q6easymcqBiologyBiology
An element playing an important role in nitrogen fixation is:
Q7easymcqBiologyBiology
One of the free-living anaerobic nitrogen-fixers is:
Q8easymcqBiologyBiology
For its action, nitrogenase requires:
Q9easymcqBiologyBiology
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:

Frequently Asked Questions

How many Nitrogen Fixation questions are on ExamTest.live?▼
We have 9 Nitrogen Fixation questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Nitrogen Fixation MCQs free?▼
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Which exams include Nitrogen Fixation questions?▼
Nitrogen Fixation questions are commonly asked in Biology. You can filter by exam using the links above.
How do I practice Nitrogen Fixation questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.