Producing one net molecule of glyceraldehyde 3-phosphate (G3P) requires the Calvin cycle to fix three CO2 molecules. Which combination of inputs accompanies that net yield?

Core Concept

Reducing six molecules of 3-PGA to six G3P uses six NADPH and six ATP. Five of those G3P then recycle to rebuild three RuBP, which requires three more ATP. Totals come to nine ATP and six NADPH per three CO2 fixed, matching what the light reactions must supply for each net G3P.