Environmental facts and photosynthesis

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1. With sodium hydroxide sollution, to test the need for carbon dioxide in photosynthesis. Which experiment?

  • Removing carbon dioxide
  • Using oxygen and carbon dioxide sensors
  • Testing leaves for starch
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2. What is from the soil and one of the raw materials for photosynthesis?

  • Chlorophyll
  • Light
  • Water
  • Carbon dioxide

3. These are all factors needed for photosynthesis, which one is not environmental?

  • Suitable temperature
  • Light
  • Chlorophyll
  • Water
  • Carbon dioxide

4. Which is not a factor affecting the rate of photosynthesis?

  • Temperature - does not affect photosynthesis, only the enzymes
  • Water - if there's enough water for the plant to survive there is plenty for photosynthesis
  • Level of carbon dioxide - they can only absorb so much carbon dioxide anyway
  • Light intensity - they can only absorb so much light anyway

5. To monitor the rate of photosynthesis. Which experiment?

  • Using oxygen and carbon dioxide sensors
  • Testing leaves for starch
  • Removing carbon dioxide

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