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Question
Photorespiration lowers the efficiency of photosynthesis by preventing the formation of
Options:
A .  carbon dioxide molecules
B .  3-phosphoglycerate molecules
C .  ATP molecules.
D .  ribulose bisphosphate molecules
Answer: Option B
:
B
Photorespirationoccurs when oxygen interferes with the Kelvin Cycle by causing RuBisCo to fix an O2 to RuBP instead of CO2.

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