alleryIn the Calvin cycle, CO2 is fixed by the enzyme:
ARuBisCO (Ribulose-1,5-bisphosphate carboxylase)
BPEP carboxylase (in C4 plants mesophyll cells)
CATP synthase (makes ATP in thylakoid membrane)
DHexokinase (glycolysis enzyme in cytoplasm)
Answer & Solution
Correct answer: A. RuBisCO (Ribulose-1,5-bisphosphate carboxylase)
RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase) fixes CO2 onto RuBP, producing 3-PGA.
The most abundant protein on Earth.
PEP carboxylase is in C4 (mesophyll cells).
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