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प्रश्न
Name any two nitrifying bacteria in soil.
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उत्तर
First, a soil bacteria convert ammonia into nitrogen-di-oxide (nitrite) eg. Nitrosomonas, Nitrosococcus, etc.
\[\ce{2NH3 + 3O2 ->[Nitrosomonas][Nitrosococcus] 2HNO2 + 2H2O}\]
Then another type of soil bacterium called Nitrobacter adds a third oxygen atom to create nitrate.
\[\ce{2HNO2 + O2 ->[Nitrobacter] 2HNO3}\]
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संबंधित प्रश्न
Blue green algae fix _________ directly from air to enhance fertility of soil.
Write a note on nitrogen fixation?
Describe nitrogen cycle.
Explain the following cycle in your own words with a suitable diagram.
Nitrogen cycle.
Very Short Answer Question:
What is denitrification?
Match the following.
| Microorganism | Role Played |
| Nitrosomonas | Nitrogen fixation |
| Azotobacter | Ammonification |
| Pseudomonas species | Nitrification |
| Putrefying bacteria | Denitrification |
Give reason for the following.
Farmers prefer to grow beans and peas in nitrogen deficient soils.
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.
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.
The atmosphere is a rich source of ______.
