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Nitrogen is a major constituent of the atmosphere comprising about 79% of the atmospheric gases. Consider the following about it:
1. It is an essential constituent of organic compounds such as amino acids and protein.
2. The principal source of free nitrogen is the action of soil microorganisms and associated plant roots on atmospheric nitrogen.
Which of the above is/are correct?
  • a)
    1 only
  • b)
    2 only
  • c)
    Both 1 and 2
  • d)
    None of the above
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Nitrogen is a major constituent of the atmosphere comprising about 79...
  • The organic compounds are the amino acids, nucleic acids, proteins, vitamins and pigments.
  • Generally, nitrogen is usable only after it is fixed. 90% of fixed nitrogen is biological.
Only a few types of organisms like certain species of soil bacteria and blue-green algae are capable of utilising it directly in its gaseous form.
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Nitrogen is a major constituent of the atmosphere comprising about 79...
Both options are correct The organic compounds are the amino acids, nucleic acids, proteins, vitamins and pigments.Generally, nitrogen is usable only after it is fixed. 90% of fixed nitrogen is biological.Only a few types of organisms like certain species of soil bacteria and blue-green algae are capable of utilising it directly in its gaseous form.
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Nitrogen is a major constituent of the atmosphere comprising about 79% of the atmospheric gases. Consider the following about it: 1. It is an essential constituent of organic compounds such as amino acids and protein.2. The principal source of free nitrogen is the action of soil microorganisms and associated plant roots on atmospheric nitrogen.Which of the above is/are correct? a) 1 onlyb) 2 onlyc) Both 1 and 2d) None of the aboveCorrect answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Nitrogen is a major constituent of the atmosphere comprising about 79% of the atmospheric gases. Consider the following about it: 1. It is an essential constituent of organic compounds such as amino acids and protein.2. The principal source of free nitrogen is the action of soil microorganisms and associated plant roots on atmospheric nitrogen.Which of the above is/are correct? a) 1 onlyb) 2 onlyc) Both 1 and 2d) None of the aboveCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Nitrogen is a major constituent of the atmosphere comprising about 79% of the atmospheric gases. Consider the following about it: 1. It is an essential constituent of organic compounds such as amino acids and protein.2. The principal source of free nitrogen is the action of soil microorganisms and associated plant roots on atmospheric nitrogen.Which of the above is/are correct? a) 1 onlyb) 2 onlyc) Both 1 and 2d) None of the aboveCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Nitrogen is a major constituent of the atmosphere comprising about 79% of the atmospheric gases. Consider the following about it: 1. It is an essential constituent of organic compounds such as amino acids and protein.2. The principal source of free nitrogen is the action of soil microorganisms and associated plant roots on atmospheric nitrogen.Which of the above is/are correct? a) 1 onlyb) 2 onlyc) Both 1 and 2d) None of the aboveCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
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