Nitrogen Cycle Flashcards by Pendar Ahmadvazir

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Role of bacteria in nitrogen cycle

nitrogen fixing bacteria
(nitrogen fixation) nitrogen gas to ammonia
nitrifying bacteria
(nitrification) ammonia to nitrite to nitrate
denitrifying bacteria
(denitrification) nitrate to nitrogen gas
decomposing bacteria
decompose dead organisms
and release ammonia

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Role of microorganisms in converting organic waste to nitrates

decomposers…
like bacteria
convert organic waste to ammonia (ammonification)
nitrification: ammonium to nitrite AND THEN nitrite converted to nitrate…
by nitrifying bacteria

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How does burning biomass return nitrogen to atmosphere

biomass contains proteins / DNA
compounds which contain nitrogen (essentially)
combustion produce nitrous oxides

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Nitrogen Cycle Flashcards

(3 cards)