
C3 carbon fixation
C3 carbon fixation is a process used by many plants to convert carbon dioxide from the air into organic compounds, like sugars, during photosynthesis. It happens mostly in the leaves, where plants take in CO2 and combine it with ribulose bisphosphate (RuBP) to form a three-carbon molecule called 3-phosphoglycerate (3-PGA). This process occurs in a series of reactions in the Calvin cycle. C3 plants thrive in moderate temperatures and have a lower efficiency in hot and dry conditions compared to other types, leading to potential water loss. Examples include wheat, rice, and most trees.