Q. No.Match List - I with List - II
Choose the correct answer from the options given below:
| List - I | List - II | ||
| (A) | Nitrococcus | (I) | Denitrification |
| (B) | Rhizobium | (II) | Conversion of ammonia to nitrite |
| (C) | Thiobacillus | (III) | Conversion of nitrite to nitrate |
| (D) | Nitrobacter | (IV) | Conversion of atmospheric nitrogen to ammonia |
| Options: | (A) | (B) | (C) | (D) |
| 1. | III | I | IV | II |
| 2. | IV | III | II | I |
| 3. | II | IV | I | III |
| 4. | I | II | III | IV |
Subtopic: Nitrogen Fixation |
71%
From NCERT
NEET - 2023
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Hints
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Which of the following protects nitrogenase inside the root nodule of a leguminous plant ?
1. Catalase
2. leg haemoglobin
3. Transaminase
4. Glutamate dehydrogenase
1. Catalase
2. leg haemoglobin
3. Transaminase
4. Glutamate dehydrogenase
Subtopic: Nitrogen Fixation | Nodule formation |
90%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following pair represents free living nitrogen fixing aerobic bacteria?
1. Rhizobium and Frankia
2. Azotobacter and Beijernickia
3. Anabaena and Rhodospirillum
4. Pseudomonas and Thiobacillus
1. Rhizobium and Frankia
2. Azotobacter and Beijernickia
3. Anabaena and Rhodospirillum
4. Pseudomonas and Thiobacillus
Subtopic: Nitrogen Fixation | Nodule formation |
73%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
Match Column-I with Column- II.
| Column I | Column II | ||
| (a) | Nitrococcus | (i) | Denitrification |
| (b) | Rhizobium | (ii) | Conversion of ammonia to nitrite |
| (c) | Thiobacillus | (iii) | Conversion of nitrite to nitrate |
| (d) | Nitrobactèr | (iv) | Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below:
| Options: | (a) | (b) | (c) | (d) |
| 1. | iii | i | iv | ii |
| 2. | iv | iii | ii | i |
| 3. | ii | iv | i | iii |
| 4. | i | ii | iii | iv |
Subtopic: Nitrogen Fixation |
80%
From NCERT
NEET - 2021
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following bacteria reduce nitrate in soil into nitrogen?
1. Nitrobacter
2. Thiobacillus
3. Nitrococcus
4. Nitrosomonas
Subtopic: Nitrogen Fixation |
77%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Select the mismatch:
| Column I | Column II | |
| 1. | Rhodospirillum | Mycorrhiza |
| 2. | Anabaena | Nitrogen fixer |
| 3. | Rhizobium | Alfalfa |
| 4. | Frankia | Alnus |
Subtopic: Nitrogen Fixation |
75%
From NCERT
NEET - 2017
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Nitrifying bacteria:
1. convert free nitrogen to nitrogen compounds
2. convert proteins into ammonia
3. reduce nitrates to free nitrogen
4. oxidize ammonia to nitrates
Subtopic: Nitrogen Fixation |
57%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The free-living, anaerobic nitrogen-fixer is:
1. Beijerinckia
2. Rhodospirillum
3. Rhizobium
4. Azotobacter
Subtopic: Nitrogen Fixation |
73%
From NCERT
AIPMT - 2010
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Study the cycle shown below and select the option which gives the correct words for all four blanks A, B, C, and D:
Options:
| A | B | C | D | |
| 1. | Denitrification | Ammonification | Plants | Animals |
| 2. | Nitrification | Denitrification | Animals | Plants |
| 3. | Denitrification | Nitrification | Plants | Animals |
| 4. | Nitrification | Ammonification | Animals | Plants |
Subtopic: Nitrogen Fixation |
81%
From NCERT
AIPMT - 2010
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following is a symbiotic nitrogen fixer?
1. Glomus
2. Azotobacter
3. Frankia
4. Azolla
Subtopic: Nitrogen Fixation | Genetics & Biochemistry of Nitrogen Fixation |
70%
From NCERT
AIPMT - 2009
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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