AIIMS 2015
- Exam
- AIIMS
- Year
- 2015
- Subject
- Botany
- Chapter
- Mineral Nutrition
AIIMS 2015 · Botany · Mineral Nutrition
Assertion : Nitrogen is one of the most essential elements of human...
Assertion : Nitrogen is one of the most essential elements of human body.
Reason : All types of prokaryotic organisms are able to fix nitrogen.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- 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 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.