Photosynthesis

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  • Created by: Lucy Carr
  • Created on: 24-02-14 15:33

1. What is a limiting factor?

  • A variable that can slow down the rate of a reaction
  • A chemical that starts the light independent reaction
  • A variable that can speed up the rate of a reaction
  • A chemical that starts the light dependent reaction
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2. What is the 1st stage in the light independent reaction?

  • GP is reduced into TP
  • RuBP combines with CO2 using rubsico to form 2xTP
  • RuBP combines with CO2 using rubisco to form 2xGP
  • Rubisco combines with CO2 using RuBP to form 2xGP

3. Where does the light dependent reaction take place?

  • Cell membrane of plant cell
  • Thylakoid membranes
  • Stroma
  • Stomata

4. How is ATP made?

  • Reduction of NADP
  • Movement of electrons through enzyme ATP synthase
  • Movement of protons through enzyme ATP synthase
  • Photolysis of water

5. What is the 1st stage in the l.d reaction?

  • Light energy excites electrons in PSll, causing them to leave and so reducing it.
  • Photolysis of water produces protons, electrons and oxygen
  • Energy from excited electrons makes ATP
  • Energy from excited electrons generates NADPH
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