UGC NET Exam > UGC NET Questions > Given below are two statements:Statement I: N...
Start Learning for Free
Given below are two statements:
Statement I: Nitrification results in an increase in effluent ammonia toxicity
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria
In light of the above statements, choose the most appropriate answer from the options given below:
Statement I: Nitrification results in an increase in effluent ammonia toxicity
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria
In light of the above statements, choose the most appropriate answer from the options given below:
- a)Both Statement I and Statement II are correct
- b)Both Statement I and Statement II are incorrect
- c)Statement I is correct but Statement II is incorrect
- d)Statement I is incorrect but Statement II is correct
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Given below are two statements:Statement I: Nitrification results in a...
Statement I: Nitrification results in an increase in effluent ammonia toxicity.
- Nitrification is the conversion of ammonia to nitrites (NO2-) and ultimately to nitrates (NO3-)
- Nitrification is the process by which nitrifying bacteria convert ammonia to nitrite and eventually to nitrate.
- Chemoautotrophic bacteria carry out the process, which is an aerobic process.
- Ammonia is the primary substrate in the nitrification process.
Thus, Statement I is incorrect.
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria.
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria.
- Denitrification is the process of converting nitrate to nitrogen in the soil.
- Bacteria such as Pseudomonas, Clostridium, and others carry out this activity.
- Changes in the oxygen (O2) concentration in their immediate environment cause denitrification.
So. Statement II is correct.
Therefore, Statement I is incorrect but Statement II is correct.
Therefore, Statement I is incorrect but Statement II is correct.
Free Test
FREE
| Start Free Test |
Community Answer
Given below are two statements:Statement I: Nitrification results in a...
Statement I: Nitrification results in an increase in effluent ammonia toxicity
Nitrification is a biological process that converts ammonia (NH3) into nitrite (NO2-) and then into nitrate (NO3-). This process is carried out by two groups of bacteria: ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB).
During nitrification, ammonia is first oxidized to nitrite by AOB, and then nitrite is further oxidized to nitrate by NOB. Both of these reactions release energy and are important in the nitrogen cycle.
However, nitrite is known to be more toxic to aquatic organisms compared to ammonia. Nitrite can interfere with the oxygen-carrying capacity of hemoglobin in fish and other aquatic organisms, leading to suffocation and death. Therefore, the accumulation of nitrite in the effluent can increase its toxicity.
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria
Denitrification is a process in which bacteria convert nitrate (NO3-) to nitrogen gas (N2) under anaerobic conditions. This process occurs when there is a lack of oxygen in the environment. Denitrifying bacteria use nitrate as an electron acceptor instead of oxygen, and in the process, they convert nitrate to nitrogen gas.
Denitrification is an important step in the nitrogen cycle as it helps to remove excess nitrogen from aquatic systems. Excess nitrogen in water bodies can lead to eutrophication, which is the excessive growth of algae and other aquatic plants. Denitrification helps maintain a balance in the nitrogen cycle and prevents the accumulation of nitrate, which can be harmful to aquatic organisms.
Explanation:
Based on the statements provided, Statement I is incorrect because nitrification does not increase effluent ammonia toxicity. It converts ammonia into nitrite and nitrate, but it does not increase the toxicity of ammonia.
On the other hand, Statement II is correct as denitrification is the process that converts nitrate to nitrogen gas, and this process is carried out by bacteria under anaerobic conditions.
Therefore, the correct answer is option 'D' - Statement I is incorrect, but Statement II is correct.
Nitrification is a biological process that converts ammonia (NH3) into nitrite (NO2-) and then into nitrate (NO3-). This process is carried out by two groups of bacteria: ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB).
During nitrification, ammonia is first oxidized to nitrite by AOB, and then nitrite is further oxidized to nitrate by NOB. Both of these reactions release energy and are important in the nitrogen cycle.
However, nitrite is known to be more toxic to aquatic organisms compared to ammonia. Nitrite can interfere with the oxygen-carrying capacity of hemoglobin in fish and other aquatic organisms, leading to suffocation and death. Therefore, the accumulation of nitrite in the effluent can increase its toxicity.
Statement II: Denitrification reduces nitrate to nitrogen gas using bacteria
Denitrification is a process in which bacteria convert nitrate (NO3-) to nitrogen gas (N2) under anaerobic conditions. This process occurs when there is a lack of oxygen in the environment. Denitrifying bacteria use nitrate as an electron acceptor instead of oxygen, and in the process, they convert nitrate to nitrogen gas.
Denitrification is an important step in the nitrogen cycle as it helps to remove excess nitrogen from aquatic systems. Excess nitrogen in water bodies can lead to eutrophication, which is the excessive growth of algae and other aquatic plants. Denitrification helps maintain a balance in the nitrogen cycle and prevents the accumulation of nitrate, which can be harmful to aquatic organisms.
Explanation:
Based on the statements provided, Statement I is incorrect because nitrification does not increase effluent ammonia toxicity. It converts ammonia into nitrite and nitrate, but it does not increase the toxicity of ammonia.
On the other hand, Statement II is correct as denitrification is the process that converts nitrate to nitrogen gas, and this process is carried out by bacteria under anaerobic conditions.
Therefore, the correct answer is option 'D' - Statement I is incorrect, but Statement II is correct.
Attention UGC NET Students!
To make sure you are not studying endlessly, EduRev has designed UGC NET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in UGC NET.
|
Explore Courses for UGC NET exam
|
|
Similar UGC NET Doubts
Top Courses for UGC NETView all
Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer?
Question Description
Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? for UGC NET 2024 is part of UGC NET preparation. The Question and answers have been prepared according to the UGC NET exam syllabus. Information about Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UGC NET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer?.
Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? for UGC NET 2024 is part of UGC NET preparation. The Question and answers have been prepared according to the UGC NET exam syllabus. Information about Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UGC NET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UGC NET.
Download more important topics, notes, lectures and mock test series for UGC NET Exam by signing up for free.
Here you can find the meaning of Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Given below are two statements:Statement I: Nitrification results in an increase in effluent ammonia toxicityStatement II: Denitrification reduces nitrate to nitrogen gas using bacteriaIn light of the above statements, choose the most appropriate answer from the options given below:a)Both Statement I and Statement II are correctb)Both Statement I and Statement II are incorrectc)Statement I is correct but Statement II is incorrectd)Statement I is incorrect but Statement II is correctCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UGC NET tests.
|
|
Explore Courses for UGC NET exam
|
|
Suggested Free Tests
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