Advertisements
Advertisements
Question
Very Short Answer Question:
What is denitrification?
Advertisements
Solution
Denitrification is the process in which anaerobic bacteria convert soil nitrates back into nitrogen gas.
Denitrifying bacteria removes fixed nitrogen i.e. nitrates from the ecosystem and returns it to the atmosphere in an inert form.
Denitrifying bacteria include Bacillus spp., Paracoccus spp. and Pseudomonas denitrificans. They transform nitrates to nitrous and nitric oxides and ultimately to gaseous nitrogen.
2NO3 → 2NO2 → 2NO → N2
APPEARS IN
RELATED QUESTIONS
How is nitrogen replenished in atmosphere.
Describe nitrogen cycle.
Very Short Answer Question:
Name the bacteria responsible for conversion of nitrite to nitrate.
Long Answer Question:
Explain biological nitrogen fixation with example.
Which free living microorganism helps in nitrogen fixation?
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.
______ is the primary nutrient, important for the survival of all living organisms.
In the Nitrification process, the ammonium compounds are oxidised to soluble ______.
Which of the following statement is incorrect with regard to combustion?
