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Question
Very Short Answer Question:
Name the bacteria responsible for conversion of nitrite to nitrate.
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Solution
Chemoautotrophs like Nitrobacter are responsible for conversion of nitrite to nitrate.
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RELATED QUESTIONS
Define chemoautotrophs.
Name four types of bacteria involved in nitrogen cycle.
Long Answer Question:
Explain biological nitrogen fixation with example.
Match the following.
| Microorganism | Role Played |
| Nitrosomonas | Nitrogen fixation |
| Azotobacter | Ammonification |
| Pseudomonas species | Nitrification |
| Putrefying bacteria | Denitrification |
Which free living microorganism helps in nitrogen fixation?
Polio drops are not given to children suffering from diarrhoea. Why?
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) | Nitrobacter | (iv) | Conversion of atmospheric nitrogen to ammonia |
Choose the correct answer from the options given below.
Free-living soil bacteria such as Pseudomonas sp. are responsible for the ______ process in the nitrogen cycle.
Assertion (A): Plants and animals can utilize atmospheric nitrogen.
Reason (R): The atmosphere is a rich source of nitrogen.
Name the cell which is responsible for nitrogen fixation in cyanobacteria.
