Nitrogen cycle

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This is a quick undetailed presentation of the components of the Nitrogen Cycle. The worksheet that goes with it is at this link

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Nitrogen cycle

  1. 1. Nitrogen Cycle <ul><li>Ecology section for Physical Science </li></ul>
  2. 2. Nitrogen Storage <ul><li>Nitrogen is stored in many ways ... </li></ul>
  3. 3. Nitrogen Storage <ul><li>Nitrogen is found as nitrogen gas in the atmosphere </li></ul>
  4. 4. Nitrogen Storage <ul><li>Nitrogen is stored in the soil as NITRATES for plants to absorb and grow larger </li></ul><ul><li>Plants can only take in nitrogen in the form of NITRATES </li></ul>
  5. 5. Nitrogen Storage <ul><li>AMMONIUM - found in the soil, formed when animals and plants decompose or produce waste </li></ul>
  6. 6. Nitrogen Storage <ul><li>Plants store nitrogen in the form of PROTEINS </li></ul><ul><li>Animals store nitrogen in the form of PROTEINS too. </li></ul><ul><li>PROTEINS make animals and plants bigger. </li></ul>
  7. 7. Nitrogen transfer <ul><li>Before nitrogen can move from one place to another, it has to be TRANSFORMED into the correct form... </li></ul>
  8. 8. Nitrogen transfer <ul><li>NITRIFICATION - forming NITRATES for plants and animals from different forms </li></ul><ul><li>Nitrogen gas => Nitrates </li></ul><ul><li>Ammonium => Nitrates </li></ul>
  9. 9. Nitrogen transfer <ul><li>Nitrogen Fixing Bacteria in nodules of plant roots turn nitrogen gas into NITRATES for plants </li></ul>
  10. 10. Nitrogen Transfer <ul><li>Bacteria break down plant and animal waste into ammonium in the soil </li></ul>
  11. 11. Nitrogen transfer <ul><li>DENITRIFICATION - when ammonium is transformed into nitrogen gas and released into the atmosphere </li></ul>
  12. 12. so let ’ s put it all together
  13. 13. Text
  14. 14. Text

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