Photosynthesis Quiz

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Questions and Answers

What was the conclusion of Jan Baptist van Helmont's willow tree experiment?

  • Plants take most of their biomass from the soil
  • Plants take most of their weight from gases
  • Plants take most of their weight from water (correct)
  • Plants take most of their weight from the air

What did Joseph Priestley observe in his experiments with a mouse, a candle, and a sprig of mint?

  • The plant revives the air for the mouse and the candle (correct)
  • The plant spends the air for the mouse and the candle
  • The plant and the candle behave similarly when covered
  • The mouse and the candle both produce oxygen

What did Jan Ingenhousz and Jean Senebier discover about the air in the late 1700s?

  • The air is only reviving in the night time
  • The air is not involved in photosynthesis
  • CO2 is disassembled by plants
  • The air is only reviving in the day time (correct)

What did Thomas Engelmann's experiment using a crystal prism reveal about photosynthetic pigments?

<p>Chlorophyll reflects blue and red rays (C)</p> Signup and view all the answers

What does Frederick Blackman's 1905 experiment reveal about the two stages of photosynthesis?

<p>Light reactions depend on the amount of light and water (B)</p> Signup and view all the answers

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