Light Independent Reaction

    Cards (4)

      • The light independent reaction occurs in the stomata.
      • ATP and NADPH is used to convert CO2 into glucose.
    • The LIR doesn't need light directly but it does need ATP and NADPH produced during LDR, so without light it will quickly stop.
    • LIR Part1:
      • RuBisCO enzyme combines CO2 with RuBP to form an unstable C6 compound.
      • This breaks into 2x GP.
      • GP is reduced by NADPH to form triose phosphate. Hydrolysis of ATP supplies the energy for the reduction. NADP is reformed and passes back to the light dependant reaction.
    • Per 6 turns of the cycle:
      • 5/6 of TP is converted back to RuBP using ATP
      • 1/6 of TP is used to produced organic molecules.