What is the process of demonstrating that chlorophyll is required for photosynthesis to happen?
Experiment to show Chlorophyll is needed for photosynthesis 1. Destarch a plant having variegated leaves (partly green and partly white) like croton.(green part contains chlorophyll while white part does not) 2. After destarching, place the plant (croton) in bright sunlight for 3-4 days. 3. Test the veriegated leaf for starch (explained above in b).Alcohol will remove the chlorophyll from green part of veriegated leaf. Observation: White portion of veriegated leaf remains white while remaining uncovered portion that was initially green shows blue black color indicating formation of starch in presence of chlorophyll Conclusion:chlorophyll is needed for photosynthesis. The document describes for example the destarching process. You could offcourse also put aluminum foil around part of a leaf of an all green plant and then let it stand for a few day’s till it goes white. Then put it in light (after removing the foil) for some time and measure the starch concentration.
