Decomposers 0.0 / 5 ? BiologyA2/A-levelOCR Created by: une-meduseCreated on: 25-05-13 15:30 Bacteria and fungi involved in decomposition are called Saprotrophs 1 of 9 Nitrogen can be fixed by lightening, the haber process and Rhizobium 2 of 9 Leaching is where Nitrate ions flow into rivers and streams 3 of 9 The haber process and lightening account for __ of the fixation of nitrogen 10% 4 of 9 Nitrogen fixing bacteria mostly live freely in the soil and Inside root nodules 5 of 9 Proteins in nodules absorb oxygen and keep the conditions Anaerobic 6 of 9 During nitrification, bacteria obtain energy by oxidising ammonium ions to nitrite ions and Oxidising nitrite ions to nitrate ions 7 of 9 During ____ bacteria convert nitrate ions back into nitrogen gas Denitrification 8 of 9 Nitrate ions are used to produce nitrogen gas and nitrous oxide Denitrification 9 of 9
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