NEETBiologyEcosystemMCQ+4 / −1
Which two distinct microbial processes are
responsible for the release of fixed nitrogen as
dinitrogen gas (N2) to the atmosphere ?
- AAnaerobic ammonium oxidation, and denitrificatrion
- BAerobic nitrate oxidation, and nitrite reduction
- CEnteric fermentation in cattle, and nitrogen fixation by Rhizobium in root nodules of legumes
- DDecomposition of organic nitrogen, and conversion of dinitrogen to ammonium compounds
View written solutionFree
Correct answer: A
In the global nitrogen cycle, bacterial denitrification is recognised as important process that converts fixed nitrogen to atmospheric nitrogen gas, N2. In marine nitrogen cycle, anaerobic oxidation of ammonium coupled to nitrate reduction, contributes substantially to N2–production in marine sediments.
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