Answer: oxygen.
- A oxygen
- B carbon dioxide
- C nitrogen
- D helium
Correct answer: A. oxygen
Explanation: Oxygen is released as a by-product of the splitting of water.
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.