JAMB Exam > JAMB Questions > What is the primary source of nitrogen for th...
Start Learning for Free
What is the primary source of nitrogen for the nitrogen cycle?
- a)Nitrogen gas (N2) in the atmosphere
- b)Nitrate ions (NO3-) in the soil
- c)Ammonium ions (NH4+) in the soil
- d)Nitrite ions (NO2-) in the soil
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is the primary source of nitrogen for the nitrogen cycle?a)Nitrog...
Primary Source of Nitrogen in the Nitrogen Cycle
The nitrogen cycle is a crucial ecological process that recycles nitrogen in various forms, allowing it to be utilized by living organisms. The primary source of nitrogen in this cycle is:
- Nitrogen Gas (N2) in the Atmosphere
Nitrogen gas (N2) constitutes about 78% of the Earth's atmosphere and serves as the main reservoir of nitrogen.
- Importance of Nitrogen Gas
- Inert Nature: Nitrogen gas is inert and does not readily react with other substances. This stability means it requires specific processes, such as nitrogen fixation, to convert it into usable forms for living organisms.
- Nitrogen Fixation: Certain bacteria and archaea, some of which are found in the root nodules of legumes, can convert atmospheric N2 into ammonia (NH3) through nitrogen fixation. This process is essential as it transforms unusable nitrogen into forms that plants can absorb.
Other Forms of Nitrogen
While nitrate ions (NO3-), ammonium ions (NH4+), and nitrite ions (NO2-) are important in the nitrogen cycle, they are derived from the conversion of nitrogen gas or from the decomposition of organic matter.
- Nitrate (NO3-): Produced through nitrification, where ammonia is oxidized by bacteria.
- Ammonium (NH4+): Can form from the breakdown of organic matter or through nitrogen fixation.
- Nitrite (NO2-): An intermediate in the nitrification process, converting ammonia to nitrate.
Conclusion
In summary, nitrogen gas (N2) in the atmosphere is the primary source of nitrogen for the nitrogen cycle, providing the foundational element necessary for the subsequent transformations that support life on Earth.
The nitrogen cycle is a crucial ecological process that recycles nitrogen in various forms, allowing it to be utilized by living organisms. The primary source of nitrogen in this cycle is:
- Nitrogen Gas (N2) in the Atmosphere
Nitrogen gas (N2) constitutes about 78% of the Earth's atmosphere and serves as the main reservoir of nitrogen.
- Importance of Nitrogen Gas
- Inert Nature: Nitrogen gas is inert and does not readily react with other substances. This stability means it requires specific processes, such as nitrogen fixation, to convert it into usable forms for living organisms.
- Nitrogen Fixation: Certain bacteria and archaea, some of which are found in the root nodules of legumes, can convert atmospheric N2 into ammonia (NH3) through nitrogen fixation. This process is essential as it transforms unusable nitrogen into forms that plants can absorb.
Other Forms of Nitrogen
While nitrate ions (NO3-), ammonium ions (NH4+), and nitrite ions (NO2-) are important in the nitrogen cycle, they are derived from the conversion of nitrogen gas or from the decomposition of organic matter.
- Nitrate (NO3-): Produced through nitrification, where ammonia is oxidized by bacteria.
- Ammonium (NH4+): Can form from the breakdown of organic matter or through nitrogen fixation.
- Nitrite (NO2-): An intermediate in the nitrification process, converting ammonia to nitrate.
Conclusion
In summary, nitrogen gas (N2) in the atmosphere is the primary source of nitrogen for the nitrogen cycle, providing the foundational element necessary for the subsequent transformations that support life on Earth.
Free Test
| FREE | Start Free Test |
Community Answer
What is the primary source of nitrogen for the nitrogen cycle?a)Nitrog...
The atmosphere is the primary source of nitrogen, which is mostly in the form of nitrogen gas (N2).
|
Explore Courses for JAMB exam
|
|
Top Courses for JAMBView all
Question Description
What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? for JAMB 2025 is part of JAMB preparation. The Question and answers have been prepared according to the JAMB exam syllabus. Information about What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JAMB 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer?.
What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? for JAMB 2025 is part of JAMB preparation. The Question and answers have been prepared according to the JAMB exam syllabus. Information about What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JAMB 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer?.
Solutions for What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JAMB.
Download more important topics, notes, lectures and mock test series for JAMB Exam by signing up for free.
Here you can find the meaning of What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What is the primary source of nitrogen for the nitrogen cycle?a)Nitrogen gas (N2) in the atmosphereb)Nitrate ions (NO3-) in the soilc)Ammonium ions (NH4+) in the soild)Nitrite ions (NO2-) in the soilCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JAMB tests.
|
|
Explore Courses for JAMB exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup