Biology Nitrogen cycle key words. 2.0 / 5 based on 1 rating ? BiologyA2/A-levelAQA Created by: EmmaCreated on: 22-11-12 11:21 Denitrification Anaerobic. Converts Nitrates to Nitrogen Gas. 1 of 5 Nitrification Oxidation Reaction, Aerobic. Changes Ammonium ions in to Nitrite ions and then Nitrate ions. 2 of 5 Ammonification Fungi and Bacteria feed on Ammonium containing compounds to release Ammonia, which becomes Ammonium ions. 3 of 5 Eutrophication Build-up of nutrients in bodies of water. 4 of 5 Nitrogen-Fixing bacteria live in root nodules and the soil. Roots - Convert Nitrogen Gas into Amino Acids for Plants. Soil - Convert Nitrogen gas into Ammonium ions. 5 of 5
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