How does the Calvin cycle first fix carbon dioxide?
Answer and explanation
Correct answer: B. RuBisCO adds CO₂ to RuBP
- Step 1: RuBisCO is the carboxylating enzyme. Step 2. The six-carbon intermediate splits into two 3-phosphoglycerate. Answer: RuBisCO and RuBP. Why not the others: these enzymes do not fix CO₂ in the Calvin cycle.
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