- 1(current)
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: Â Nitrogen Fixation |
 66%
Level 2: 60%+
NEET - 2023
Hints
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: Â Nitrogen Fixation |Â Nodule formation |
 87%
Level 1: 80%+
NEET - 2022
Hints
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: Â Nitrogen Fixation |Â Nodule formation |
 69%
Level 2: 60%+
NEET - 2022
Hints
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: Â Nitrogen Fixation |
 79%
Level 2: 60%+
NEET - 2021
Hints
Which of the following bacteria reduce nitrate in soil into nitrogen?
1. Nitrobacter
2. Thiobacillus
3. Nitrococcus
4. Nitrosomonas
Subtopic: Â Nitrogen Fixation |
 76%
Level 2: 60%+
NEET - 2019
Hints
Select the mismatch.
1. Frankia Alnus
2. Rhodospirillium Mycorrhiza
3. Anabaena Nitrogen fixer
4. Rhizobium Alfa-fa
Subtopic: Â Nitrogen Fixation |
 75%
Level 2: 60%+
NEET - 2017
Hints
- 1(current)
Q. No.
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