Plant Nutrition Essentials Quiz
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Questions and Answers

Which scientist proved in 1840 that plants needed nitrogen, potassium, and phosphorus?

  • Justus von Liebig (correct)
  • Casparian strip
  • Arnon and Stout
  • Proton pumps
  • What is the essential organ for the uptake of nutrients in plants?

  • Phloem
  • Xylem
  • Root hair (correct)
  • Stomata
  • What prevents passive flow of water and nutrients via the root?

  • Cation exchange
  • Casparian strip (correct)
  • Proton pumps
  • Steles
  • What process is responsible for nutrient uptake in the soil by plants?

    <p>Cation exchange</p> Signup and view all the answers

    Which fundamental way do plants use to uptake nutrients through the root?

    <p>Simple diffusion</p> Signup and view all the answers

    Which of the following elements is typically obtained from the air by plants?

    <p>Nitrogen (N)</p> Signup and view all the answers

    In what form do plants absorb essential elements from the soil?

    <p>As ions</p> Signup and view all the answers

    Which of the following elements contribute to over 95% of a plant's entire biomass on a dry matter weight basis?

    <p>Hydrogen, Oxygen, Nitrogen, and Carbon</p> Signup and view all the answers

    How are micronutrients present in plant tissue typically measured?

    <p>In parts per million</p> Signup and view all the answers

    According to Justus von Liebig’s law of the minimum, in what situation is a plant unable to complete a normal life cycle?

    <p>In the absence of a chemical element necessary for plant growth</p> Signup and view all the answers

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