UPSC Exam > UPSC Questions > Which of the following statements correct reg...
Start Learning for Free
Which of the following statements correct regarding Nitrogen fixation?
- a)It involves capture of atmospheric nitrogen gas to form ammonia.
- b)Microorganisms called diazotrophs can perform nitrogen fixation.
- c)Lightning is a major source of denitrification.
- d)Option A and option B
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which of the following statements correct regarding Nitrogen fixation?...
Option a is correct: Nitrogen fixation is the capture of the atmospheric nitrogen gas (N2) to form ammonia (NH3), which is readily available for assimilation by plant and microbes. Nitrogen fixation has been termed as a prominent component of the nitrogen-cycle on coral reefs which may relieve Nitrogen limitation and make a globally significant contribution to overall marine Nitrogen inputs.
Option b is correct: Diazotrophs are bacteria that fix atmospheric nitrogen gas into a more usable form such as ammonia. A diazotroph is able to grow without external sources of fixed nitrogen. Examples of organisms that do this are rhizobia and Frankia (in symbiosis) and Azospirillum.
Option c is incorrect: Denitrification is a biochemical process in which nitrates are reduced to ammonia or nitrogen gas by bacterial activity. Lightning converts atmospheric nitrogen into ammonia and nitrates that enter soil with rainfall. Thus lightning is not a source of denitrification.
Most Upvoted Answer
Which of the following statements correct regarding Nitrogen fixation?...
Introduction:
Nitrogen fixation is the process by which atmospheric nitrogen gas (N2) is converted into ammonia (NH3) or other nitrogen compounds that can be used by plants and other organisms. This process is essential for the nitrogen cycle and is primarily carried out by microorganisms called diazotrophs.
Statement Analysis:
a) It involves capture of atmospheric nitrogen gas to form ammonia.
This statement is correct. Nitrogen fixation involves the conversion of atmospheric nitrogen gas into ammonia or other nitrogen compounds that can be used by living organisms. This process is essential for the production of nitrogen-containing compounds, such as proteins and nucleic acids.
b) Microorganisms called diazotrophs can perform nitrogen fixation.
This statement is correct. Diazotrophs are microorganisms that have the ability to convert atmospheric nitrogen gas into ammonia through the process of nitrogen fixation. Examples of diazotrophs include bacteria such as Rhizobium, Azotobacter, and cyanobacteria.
c) Lightning is a major source of denitrification.
This statement is incorrect. Lightning is not a major source of denitrification. Denitrification is the process by which nitrogen compounds, such as nitrate (NO3-) and nitrite (NO2-), are converted back into atmospheric nitrogen gas. Denitrification is primarily carried out by certain bacteria in anaerobic environments, such as wetlands and soil.
Correct answer:
The correct answer is option D - "Option A and option B". Both statements A and B are correct. Nitrogen fixation involves the capture of atmospheric nitrogen gas to form ammonia, and microorganisms called diazotrophs are capable of performing nitrogen fixation.
In conclusion, nitrogen fixation is an important process that allows atmospheric nitrogen gas to be converted into usable forms of nitrogen for living organisms. It is primarily carried out by diazotrophs, which are microorganisms capable of nitrogen fixation. Lightning, on the other hand, is not a major source of denitrification.
Nitrogen fixation is the process by which atmospheric nitrogen gas (N2) is converted into ammonia (NH3) or other nitrogen compounds that can be used by plants and other organisms. This process is essential for the nitrogen cycle and is primarily carried out by microorganisms called diazotrophs.
Statement Analysis:
a) It involves capture of atmospheric nitrogen gas to form ammonia.
This statement is correct. Nitrogen fixation involves the conversion of atmospheric nitrogen gas into ammonia or other nitrogen compounds that can be used by living organisms. This process is essential for the production of nitrogen-containing compounds, such as proteins and nucleic acids.
b) Microorganisms called diazotrophs can perform nitrogen fixation.
This statement is correct. Diazotrophs are microorganisms that have the ability to convert atmospheric nitrogen gas into ammonia through the process of nitrogen fixation. Examples of diazotrophs include bacteria such as Rhizobium, Azotobacter, and cyanobacteria.
c) Lightning is a major source of denitrification.
This statement is incorrect. Lightning is not a major source of denitrification. Denitrification is the process by which nitrogen compounds, such as nitrate (NO3-) and nitrite (NO2-), are converted back into atmospheric nitrogen gas. Denitrification is primarily carried out by certain bacteria in anaerobic environments, such as wetlands and soil.
Correct answer:
The correct answer is option D - "Option A and option B". Both statements A and B are correct. Nitrogen fixation involves the capture of atmospheric nitrogen gas to form ammonia, and microorganisms called diazotrophs are capable of performing nitrogen fixation.
In conclusion, nitrogen fixation is an important process that allows atmospheric nitrogen gas to be converted into usable forms of nitrogen for living organisms. It is primarily carried out by diazotrophs, which are microorganisms capable of nitrogen fixation. Lightning, on the other hand, is not a major source of denitrification.
Attention UPSC Students!
To make sure you are not studying endlessly, EduRev has designed UPSC study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UPSC.
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer?
Question Description
Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer?.
Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. 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.
Here you can find the meaning of Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements correct regarding Nitrogen fixation?a)It involves capture of atmospheric nitrogen gas to form ammonia.b)Microorganisms called diazotrophs can perform nitrogen fixation.c)Lightning is a major source of denitrification.d)Option A and option BCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC 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
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup