Photosynthesis Page 6

 
• II. Calvin Benson Cycle (C3 Photosynthesis)
• D. Ribulose bisphosphate Carboxylase (RuBP Carboxylase) "Rubisco"
• 1. High CO2 -> 2 PGA
• 
• 2. Photorespiration
• a. High O2 -> 1 PGA + phosphoglycolate
• b. phosphoglycolate -> PGA + CO2
• c. 20-30 % of Carbon fixed is lost
• 
•  > Page 7