Phosphorus in Plants and Fertilizers
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Questions and Answers

What is the primary function of phosphorous in plants?

  • Enhancing flower color
  • Energy storage and transfer (correct)
  • Facilitating photosynthesis
  • Promoting root growth
  • Which process in plants heavily relies on phosphorous?

  • Energy storage and transfer (correct)
  • Transpiration
  • Stomatal opening
  • Cell division
  • What is the main role of phosphorous in plant metabolism?

  • Seed dispersal
  • Chlorophyll production
  • Energy storage and transfer (correct)
  • Water absorption
  • Which of the following is NOT a primary function of phosphorous in plants?

    <p>Enhancing fruit development</p> Signup and view all the answers

    In plants, what does phosphorous primarily facilitate?

    <p>Energy storage and transfer</p> Signup and view all the answers

    Which important biological molecules contain the element mentioned in the text?

    <p>RNA and DNA</p> Signup and view all the answers

    In what form is the element commonly used in fertilizers?

    <p>Superphosphate</p> Signup and view all the answers

    Which of the following is NOT mentioned as a place where the element is found?

    <p>Mitochondria</p> Signup and view all the answers

    Which molecule uses the element to store and transfer energy within cells?

    <p>ATP and ADP</p> Signup and view all the answers

    Which compound could be formed by combining the element with phosphorus?

    <p>Phospholipids</p> Signup and view all the answers

    What does PVC stand for?

    <p>Polyvinyl Chloride</p> Signup and view all the answers

    Which elements are combined to form PVC?

    <p>Chlorine</p> Signup and view all the answers

    What is PVC commonly used for?

    <p>Piping</p> Signup and view all the answers

    Which of the following is NOT true about PVC?

    <p>It is commonly used in glassware</p> Signup and view all the answers

    What is the full name of PVC?

    <p>Polyvinyl Chloride</p> Signup and view all the answers

    What happens when the phosphate compounds from either ATP or ADP are split off?

    <p>A relatively large amount of energy is liberated</p> Signup and view all the answers

    How much energy (in cal/mol) is liberated when the phosphate compounds are split off from either ATP or ADP?

    <p>12,000</p> Signup and view all the answers

    Which molecule liberates a relatively large amount of energy upon splitting off its phosphate compounds?

    <p>ATP</p> Signup and view all the answers

    If no energy is liberated upon splitting off phosphate compounds, which of the following is most likely to be true?

    <p>The cell is not functioning properly</p> Signup and view all the answers

    What role does the liberation of energy upon splitting off phosphate compounds play in cellular processes?

    <p>Provides energy for cellular activities</p> Signup and view all the answers

    What is the typical range of fluorine content in plant material in terms of parts per million (ppm) in the dry matter?

    <p>2-20 ppm</p> Signup and view all the answers

    Which acid is explicitly mentioned as 'NOT FOR SALE' in the text?

    <p>Hydrofluoric acid</p> Signup and view all the answers

    In terms of fluorine accumulation, what distinguishes certain plant species from others?

    <p>Ability to accumulate higher amounts</p> Signup and view all the answers

    What is the common concentration range of fluorine in plant material that some species can exceed?

    <p>50-60 ppm</p> Signup and view all the answers

    Which of the following substances is known for its ability to accumulate much higher amounts of fluorine in plants?

    <p>Black tea</p> Signup and view all the answers

    Study Notes

    Phosphorus in Plants

    • Phosphorus is essential for energy storage and transfer in plants, primarily in the form of ATP and ADP.
    • The phosphate compounds from ATP or ADP, when split off, release a significant amount of energy (12,000 cal/mol).

    Phosphorus Functions

    • Phosphorus is a key constituent of DNA and RNA, bones, teeth, and some shells.
    • It is an essential component of membrane phospholipids and Adenosine diphosphate (ADP) and Adenosine triphosphate (ATP).

    Fertilizers

    • Phosphorus is used in fertilizers, particularly in the forms of superphosphate and tri-phosphate.

    Fluorine in Plants

    • Fluorine typically occurs in plant material in the range of 2-20 ppm in dry matter.
    • Some plant species can accumulate much higher amounts of fluorine.

    Chlorine Compound

    • Polyvinyl chloride (PVC) is a common plastic compound composed of chlorine.

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    Explore the role of phosphorus in plants, DNA, RNA, bones, teeth, membranes, and more. Test your knowledge on the use of superphosphate and tri-phosphate forms of phosphorus in fertilizers.

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