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NEET2015BotanyMineral NutritionActual

Assertion : Nitrogen is one of the most essential elements of human body. Reason : All types of prokaryotic organisms are able to fix nitrogen.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

Nitrogen is one of the most essential elements of human body. It is a constituent of a number of organic compounds like amino acids, proteins, nucleotides, nucleic acids, many vitamins, hormones etc. Biological N ₂ fixation is a very important natural process which is performed bytwo types of prokaryotes - bacteria and cyanobacteria. They include both free living and symbiotic forms.

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