Chemistry - Biomolecules Question with Solution | TestHub

Collagen is the most abundant protein in the animal world, and Ribulose bisphosphate Carboxylase-Oxygenase (RuBisCO) is the most abundant protein in the whole of the biosphere.
Carboxylation is the fixation of CO₂into a stable organic intermediate. Carboxylation is the most crucial step of the Calvin cycle where CO₂is utilised for the carboxylation of RuBP. This reaction is catalysed by the enzyme RuBP carboxylase which results in the formation of two molecules of 3-PGA. Since this enzyme also has an oxygenation activity, it would be correct to call it RuBP carboxylase-oxygenase or RuBisCO.