The Nitrogen Cycle These cards will help you tohave agreater understanding of the Nitrogen Cycle. 0.0 / 5 ? BiologyThe Nitrogen CycleGCSEOCR Created by: Megan TarnCreated on: 01-02-15 17:20 What are the four different types of bacteria involved in the Nitrogen Cycle? Decomposers, Nitrifying Bacteria, Nitrogen-Fixing Bacteria and Denitrifying Bacteria. 1 of 6 What do the decomposers do? They decompose proteins and urea and turn them into ammonia. 2 of 6 What does the Nitrifying Bacteria do? They turn ammonia in decaying matter into nitrates. 3 of 6 What do the Nitrogen-Fixing bacteria do? They turn atmospheric N2(small 2) into nitrogen compounds that plants can use. 4 of 6 What does the Denitrifying Bacteria do? They turn nitrates back into N2(small 2) gas. 5 of 6 Where can Nitrogen-Fixing Bacteria live? In the soil and in nodules on the roots of legume plants (e.g. peas and beans...) They have a mutualistic relationship. 6 of 6
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