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 is the function of light in the light-depedent reaction?

  • To make ATP, photolysis of water, to excite an electron in chlorophyll
  • To reduce CO2, to make ATP, to excite an electron in chlorophyll
  • photolysis of water, to reduce glycerate-3-phospate, to make ATP
  • To make ATP, photolysis of water, To enable the chlorophyll to take up an electron
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2. The products of the photolysis (splitting) of water are...

  • O2, H+ and a neutron
  • O2, H+ and an electron
  • OH-, H+
  • H+ and an electron

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

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

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

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


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