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Nitrogen Cylce Flashcards

THE ACRONYM
FIXation Ammonia
Nitrification Nitrite/Nitrate
Assimilation Proteins
Ammonification Ammonium
Dentrification Nitrogen

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1006586527Abiotic FixationN₂ → NO Nitrogen Gas → Nitrogen Monoxide NO₂ → HNO₃ Nitrite → Nitric Acid Lightning and Cosmic Radiation0
1006586528Biotic FixationN₂ → NH₃ Nitrogen Gas → Ammonia Soil Micro-organisms- Rhizobium bacteria and Legumes1
1006586529NitrificationNH₃ → NO₂⁻ → NO₃⁻ Ammonia → Nitrite → Nitrate Micro-organisms- Nitrosomas (NO₂⁻) and Nitrobacter (NO₃⁻)2
1006586530AssimilationNitrates to plant roots and then to other plants Plants through root hairs3
1006586531AmmonificationNitrogenous waste and organic matter into inorganic ammonia Decomposing micro-organisms like bacteria and fungi4
1006586532DentrificationNitrates to gaseous nitrogen and lost to atmosphere Facultative anaerobes5
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