Carboxylation in Calvin cycle is catalysed by

Carboxylation in the Calvin cycle is catalyzed by the enzyme called Ribulose-1,5-bisphosphate carboxylase. Its primary function is to convert carbon dioxide (CO₂) into organic molecules, such as glucose. The key step in the Calvin cycle involves the carboxylation of ribulose-1,5-bisphosphate (RuBP), a 5-carbon compound, with CO₂ to produce a 3-carbon compound called 3-phosphoglycerate (3-PGA).