Answer: Joseph Priestley.
- A Jan Ingenhousz
- B Julius von Sachs
- C Cornelius van Niel
- D Joseph Priestley
Correct answer: D. Joseph Priestley
Explanation: Priestley's experiments with a candle, a mouse and a mint plant showed that plants restore ('purify') air by releasing oxygen.
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.