Photosynthesis - unit 4 AQA Biology a-level

Quiz about photosynthesis, can be used for any specification but fitted to the aqa biology specification at A2 :)

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  • Created by: Mirte
  • Created on: 05-06-14 11:55

1. What two products from the light-dependent reaction are used in the light-indepedent reaction?

  • O2 and NADPH
  • ATP and NADPH
  • O2 and ATP
  • NADPH and H2O
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Other questions in this quiz

2. Why is hot methanol used to drop samples of photosynthesising algae into in the Calvin lollipop experiment?

  • Because it instantly stops the reaction by boiling the water present in the algae
  • Because it instantly stops the reaction by denaturing enzymes for photosyntheis
  • because it allows substances into which C14 is incorporated to be identified
  • Because it is a limiting factor to photosynthesis

3. In the light-indepedent reaction (Calvin cycle) Ribulose biphospate combines with CO2, aided by enzyme action. What is the product of this?

  • ADP and Pi
  • Glycerate 3 phospate
  • Triose phospate
  • Phosporylated glucose

4. Where does the light-dependent reaction take place?

  • In the lower mesophyll layer only
  • In the thylakoid membrane of the chloroplast
  • In the stroma
  • In the chloroplast membrane

5. It is called the 'compensation point' when...

  • CO2 concentration (released) = O2 concentration (absorbed)
  • Light absorbed = respiration rate
  • Respiration rate = Photosynthesis rate


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