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Questions and Answers
What is the primary function of phosphorous in plants?
Which process in plants heavily relies on phosphorous?
What is the main role of phosphorous in plant metabolism?
Which of the following is NOT a primary function of phosphorous in plants?
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In plants, what does phosphorous primarily facilitate?
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Which important biological molecules contain the element mentioned in the text?
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In what form is the element commonly used in fertilizers?
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Which of the following is NOT mentioned as a place where the element is found?
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Which molecule uses the element to store and transfer energy within cells?
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Which compound could be formed by combining the element with phosphorus?
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What does PVC stand for?
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Which elements are combined to form PVC?
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What is PVC commonly used for?
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Which of the following is NOT true about PVC?
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What is the full name of PVC?
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What happens when the phosphate compounds from either ATP or ADP are split off?
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How much energy (in cal/mol) is liberated when the phosphate compounds are split off from either ATP or ADP?
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Which molecule liberates a relatively large amount of energy upon splitting off its phosphate compounds?
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If no energy is liberated upon splitting off phosphate compounds, which of the following is most likely to be true?
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What role does the liberation of energy upon splitting off phosphate compounds play in cellular processes?
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What is the typical range of fluorine content in plant material in terms of parts per million (ppm) in the dry matter?
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Which acid is explicitly mentioned as 'NOT FOR SALE' in the text?
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In terms of fluorine accumulation, what distinguishes certain plant species from others?
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What is the common concentration range of fluorine in plant material that some species can exceed?
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Which of the following substances is known for its ability to accumulate much higher amounts of fluorine in plants?
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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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Description
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.
