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Phosphorus & Calcium cycles

Phosphorus & Calcium cycles. Why are phosphorus & calcium important?. Phos = important for DNA, ATP, phospholipids, bones & teeth and compounds that function in photosynthesis and respiration. Why are phosphorus & calcium important?.

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Phosphorus & Calcium cycles

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  1. Phosphorus & Calcium cycles

  2. Why are phosphorus & calcium important? • Phos = important for DNA, ATP, phospholipids, bones & teeth and compounds that function in photosynthesis and respiration.

  3. Why are phosphorus & calcium important? • Phos = important for DNA, ATP, phospholipids, bones & teeth and compounds that function in photosynthesis and respiration. • Ca = important for proper functioning of cell membranes, and many enzyme reactions. Also forms teeth, bones and exoskeletons of many marine organisms.

  4. Why are phosphorus & calcium important? • Phos = important for DNA, ATP, phospholipids, bones & teeth and compounds that function in photosynthesis and respiration. • Ca = important for proper functioning of cell membranes, and many enzyme reactions. Also forms teeth, bones and exoskeletons of many marine organisms. • Phosphate and calcium are found in rock – the are released to the living world through weathering.

  5. The Cycles • Move in a cycle between organisms and the environment

  6. The Cycles • Move in a cycle between organisms and the environment • Does not involve the atmosphere

  7. The Cycles • Move in a cycle between organisms and the environment • Does not involve the atmosphere • P & Ca are taken up and dissolved in soil water by plant roots – then incorporated into the organic molecules in the plant body and these pass through the food chains and webs.

  8. The Cycles • Move in a cycle between organisms and the environment • Does not involve the atmosphere • P & Ca are taken up and dissolved in soil water by plant roots – then incorporated into the organic molecules in the plant body and these pass through the food chains and webs. • They finally reach the decomposers which release some of the ions back into the soil.

  9. How humans affect the cycle • Increase the rate of phosphorus recycling by adding fertilisers & increase rate of ca by using lime, dolomite or gypsum.

  10. How humans affect the cycle • Increase the rate of phosphorus recycling by adding fertilisers & increase rate of ca by using lime, dolomite or gypsum. • Seabird deposits accumulated over hundreds of years are mined as guano and used as fertiliser – rich in phosphates http://www.youtube.com/watch?v=RKkC2JpjaGc

  11. How humans affect the cycle • Increase the rate of phosphorus recycling by adding fertilisers & increase rate of ca by using lime, dolomite or gypsum. • Seabird deposits accumulated over hundreds of years are mined as guano and used as fertiliser – rich in phosphates http://www.youtube.com/watch?v=RKkC2JpjaGc

  12. How humans affect the cycle • Increase the rate of phosphorus recycling by adding fertilisers & increase rate of ca by using lime, dolomite or gypsum. • Seabird deposits accumulated over hundreds of years are mined as guano and used as fertiliser – rich in phosphates http://www.youtube.com/watch?v=RKkC2JpjaGc http://www.youtube.com/watch?v=HOq8PKX18A4

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