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In order to make nitrogen available for primary producers like plants in ecosystems, it is converted to:

In order to make nitrogen available for primary producers like plants in ecosystems, it is converted to:

  • (a) Nitrates
  • (b) Nitrites
  • (c) Ammonia
  • (d) Nitric Acid
  • In order for the plant to take in the nitrogen from the soil, it must be present in a form that can be taken in by the plant. The form that can be taken in most easily by the plant is nitrates (NO3−).
  • In the nitrogen cycle, N2 in the air reacts with nitrogen-fixing bacteria to produce ammonia (NH3). As such, ammonia is a key component in the nitrogen cycle.
  • However, this ammonia does not stay around very long in most natural systems, being rapidly converted to nitrites (NO2−) and then to nitrates (NO3−) in a process known as nitrification. So, the correct answer to this question would be B, not ammonia.
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Related MCQs:

 ‘NATO’ is an abbreviation of:

March 18, 2026 No Comments
  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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