| Question |
Answer |
Flap 3 |
| Nitrates are converted into atmospheric nitrogen | Denitrification | Denitrifying bacteria |
| The release of nitrogen from dead materials and wastes | Decomposition | Bacteria and Fungi |
| How do animals obtain a supply of nitrogen? | They must eat plant and/or animal protein. | Animals are unable to synthesise proteins. |
| Bacteria convert atmospheric nitrogen into useable nitrogen compounds | Nitrogen Fixation | 1) Bacteria present in root nodules
2) Lightening
3) The Haber Process |
| The process of bacteria converting ammonium compounds into nitrates. | Nitrification | Nitrifying bacteria |
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