Phosphorus cycle

• 3 important substances that phosphorus is found in ?

  • ATP
  • Nucleotides in DNA
  • Phospholipids
• What form and what rock is phosphate most commonly found in ?

  Phosphate ions PO43-, Sedimentary rocks
• How is phosphorus made available for plants to use ?

  Weathering and erosion of rocks, dissolved phosphate ions are available for plants to absorb
• 3 ways in which phosphorus is returned back to the rocks ?

  Bones and shells, phosphate ions in faeces make their way into oceans and form sedimentary rock, decomposing bacteria breakdown dead organisms and release phosphate ions into water or soil