Which enzyme catalyzes the fixation of carbon dioxide into 3-phosphoglycerate during the Calvin cycle in C3 plants?

💡 Solution & Explanation

RuBisCO catalyzes the carboxylation of ribulose bisphosphate during the carbon fixation phase of the Calvin cycle in plants. Enzymes like hexokinase function in glycolysis rather than photosynthetic carbon assimilation. RuBisCO is widely recognized as the most abundant protein on Earth due to its central role in global primary production.