The C3 pathway is the single step process that takes place in the chloroplast.
It is the most common of three metabolic pathways for carbon fixation in photosynthesis, along with C4 and CAM Pathways
This process converts carbon dioxide and ribulose bisphosphate (RuBP, a 5-carbon sugar) into two molecules of 3-phosphoglycerate through the following reaction:
CO2 + H2O + RuBP → (2) 3-phosphoglycerate
C3 plants all create sugars from CO2 through the Calvin cycle
Cells involved in the C3 pathway are mesophyll cells
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C3 Plants
“Normal plants” - one that doesn't have photosynthetic adaptations to reduce photorespiration
About 85% of the plant species on the planet are C3 plants, including rice, wheat, soybeans and all trees.
Tend to thrive in areas where sunlight intensity is moderate, temperatures are moderate, carbon dioxide concentrations are around 200 ppm or higher, and groundwater is plentiful.
12 NADPH and 18 ATPs are required to produce glucose
Optimum temperature for photosynthesis is 15-25 degrees C