Question Detail
Question
In CO2 fixation reaction which enzyme catalyses the first step reaction.
Correct Answer
Option A is the correct answer.
Detailed Explanation
The first step of carbon fixation in the Calvin cycle (C3 plants) is catalyzed by the enzyme RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase), also known as RuBP carboxylase. It attaches CO2 to RuBP. PEP carboxylase is the first enzyme in the C4 pathway.
Hint
What is the full name of the most abundant enzyme on Earth, often shortened to RuBisCO?