Ecological Stoichiometry and Phytoplankton Nutrients Quiz
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Questions and Answers

What form do phytoplankton cells mostly take up phosphorus as?

  • HPO42-
  • PO43- (correct)
  • H3PO4
  • H2PO4-

    • What are the key limiting nutrient(s) mentioned in the text?

  • Calcium
  • Nitrogen
  • Phosphorus (correct)
  • Potassium

    • What are the two poorly soluble salts that PO43- precipitates with?

  • Al2(SO4)3 and Na2CO3
  • NaCl and KBr
  • Ca2PO4(OH) and FePO4 (correct)
  • MgSO4 and KNO3

    • What are the trophic states based on Total Phosphorus (TPmix) concentration during winter mixing?

    <p>ultra-oligotrophic, oligotrophic, mesotrophic, eutrophic, hypereutrophic</p> Signup and view all the answers

    What is the form of Orthophosphoric acid (H3PO4) dissociation mentioned in the text?

    <p>H2PO4-, HPO42-, PO43-</p> Signup and view all the answers

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