Priestley's Photosynthesis Experiment — NEET Biology
📚 Practice ConceptCan you imagine how Priestley would have conducted the experiment using a candle and a plant? Remember, he would need to rekindle the candle to test whether it burns after a few days. How many different ways can you think of to light the candle without disturbing the set-up?
Which of the following statements about early experiments in photosynthesis and their links to O₂ evolution are NOT correct? S1: Joseph Priestley's experiment established that a mint plant could reverse the damage to air caused by a burning candle, indicating oxygen production. S2: Jan Ingenhousz definitively identified the bubbles formed around aquatic plants in sunlight as oxygen. S3: T.W. Engelmann's experiment using aerobic bacteria provided direct evidence for the release of oxygen in specific spectral regions. S4: Julius von Sachs' work primarily demonstrated that plants, when growing, produce starch as a storage form of glucose, directly linking photosynthesis to glucose synthesis, not O2 evolution. S5: The experiment involving a variegated leaf showed that light is necessary for starch formation but did not directly link it to O2 evolution.
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