Class 11 Biology Photosynthesis In Higher Plants The Primary Acceptor of CO2

The Primary Acceptor of CO2

  • The accepter molecule is a 5-carbon ketose sugar, which is ribulose bisphosphate (RuBP).
  • Since the first product was a C3 acid, the primary acceptor would be a 2-carbon compound.
  • Scientists spent many years trying to identify a 2-carbon compound before they discovered the 5-carbon RuBP.


Fig. Ribulose bisphosphate

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