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. Why are there different pigments present in the chloroplast?

  • Because each pigment absorbs different wavelengths of light
  • Because each pigment is located in a different part of the chloroplast and are thus in different conditions
  • Because some pigments absorb infrared radiation
  • Because each pigment is a different colour
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2. 'The rate of photosynthesis is affected by the factor whose level is at the least favourable value' this is called the...

  • least favourable factor
  • limited factor
  • limiting factor
  • stopping factor

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

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

4. Why is the rate of photosynthesis not equal to the net uptake of CO2 by a plant?

  • Because CO2 is used only in the light-indepedent reaction
  • Because some CO2 produced in respiration is used for photosynthesis
  • Because the rate of photosynthesis increases with temperature
  • Because venus flytraps are carnivores

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

  • In the chloroplast membrane
  • In the stomata
  • In the stroma
  • In the thylakoid membrane of the chloroplast


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