Carbon fixation rxns

• Requires:

  • ATP + NADPH
  • these help form carbs from CO2
• Chemical reaction 


  6CO2 + 12NADH + 18 ATP ----> 6H20 + 12NADP + 18 ADP + 18Pi
• Carbon fixation happens using calvin cycle
• Calvin cycle

  • occurs in most plants
  • happens in stroma of chloroplasts
  • no direct use of light E
  • inputs are ATP + NADPH which provide energy for cycle to occur
• 3 phases of Calvin Cycle

  • Carbon fixation
  • Reduction
  • RuBP regeneration