Question Detail
Question
In strict sense, the first product of photosynthesis is
Correct Answer
Option C is the correct answer.
Detailed Explanation
In the Calvin cycle, CO2 is fixed to RuBP, forming an unstable 6-carbon intermediate that splits into two molecules of 3-phosphoglycerate (3-PGA). 3-PGA is then reduced to glyceraldehyde-3-phosphate (G3P), which is a triose phosphate. G3P is the first stable, carbohydrate product of photosynthesis. Glucose (a hexose) is formed later by combining two G3P molecules.
Hint
What is the first three-carbon sugar phosphate produced in the Calvin cycle?