Photosynthesis and Carbohydrates Quiz
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Questions and Answers

Which factor can become a limiting factor in the rate of photosynthesis when it is in short supply?

  • Starch
  • Carbon dioxide (correct)
  • Water
  • Chlorophyll
  • What is the primary role of carbohydrates in plants?

  • Photosynthesis (correct)
  • Respiration
  • Cellulose production
  • Energy storage
  • Why is light intensity crucial for the rate of photosynthesis?

  • To increase the rate of photosynthesis (correct)
  • To maintain water levels
  • To store excess carbohydrates
  • To produce more oxygen
  • What happens when plants respire?

    <p>Oxygen and carbohydrate are used up</p> Signup and view all the answers

    Which food group includes sugars, starch, and cellulose that are important for plants?

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

    What does chlorophyll do in plant cells?

    <p>Enables photosynthesis</p> Signup and view all the answers

    What factor can become limiting in the chemical reactions that combine carbon dioxide and water to produce glucose?

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

    At which point does the rate of photosynthesis become limited by the number of molecular collisions between enzymes and substrates?

    <p>Low temperatures</p> Signup and view all the answers

    Why does the line on a graph measuring oxygen production or carbon dioxide uptake as a measure of photosynthetic rate not go through the origin?

    <p>Respiration affects oxygen production and carbon dioxide uptake</p> Signup and view all the answers

    Which part of the electromagnetic spectrum does chlorophyll absorb for photosynthesis?

    <p>Red and blue parts</p> Signup and view all the answers

    What is the consequence of denaturation of enzymes on the rate of photosynthesis?

    <p>Decreases the rate</p> Signup and view all the answers

    Why does the carbon dioxide uptake on a graph show a value below zero with no light present?

    <p>Respiration produces excess carbon dioxide</p> Signup and view all the answers

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