Answer: RuBP.
- A RuBP
- B glucose
- C pyruvate
- D plain ATP
Correct answer: A. RuBP
Explanation: CO₂ combines with ribulose-1,5-bisphosphate (RuBP) in carbon fixation.
Simplified photosynthesis diagram: light energy, CO2, and H2O enter the leaf and are converted in the chloroplast into glucose and O2.
Concept context
Light reactions, the Calvin cycle, C 3 /C 4 /CAM pathways, photorespiration, and factors affecting the rate of photosynthesis. One of the highest-yield NEET chapters.