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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
Give the schematic representation of the TCA cycle.
Very Short Answer Question:
What is denitrification?
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 |
Suggest a suitable word for the following statement.
Agent which spreads pathogens from one place to another
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.
The bacteria present in the root nodules of leguminous plants is ______.
Match column I with Column II.
| Column I | Column II |
| A Acidic | (i) Phenylalanine (Phe) |
| B Neutral | (ii) Cysteine (Cys) |
| C Aromatic | (iii) Valine (Val) |
| D S(Sulphur) containing | (iv) Asparagine (Asn) |
Select the correct answer from the options given below.
Nitrates of soil are also leached deep into the earth by ______.
