Environmental facts and photosynthesis

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1. Why is temperature a factor which can affect the rate of photosynthesis?

  • It affects the leaves
  • It affects the enzymes
  • It affects the photosynthesis directly
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Other questions in this quiz

2. Why is a suitable temperature needed?

  • So the plant doesn't die
  • So the enzymes which control photosynthesis can work well
  • So the water doesn't dry up

3. What is from the air and a raw materialfor the manufacture of carbohydrates?

  • Chlorophyll
  • Light
  • Carbon dioxide
  • Water

4. To see if photosynthesis has occured it involves boiling the leaf in alcohol to remove the colour then staining with iodine, blue-black indicates starch (which is how glucose is stored). Which experiment?

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

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

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

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