how will you prove that chlorophyll is essential for
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Take a plant with variegated leaves having some green and some non green areas.Example: Coleus, Geranium and Croton.
- Destarch the leaves by keeping the plant in a dark room for a few days.
- Place the plant in the sun.
- After a few hours, pluck one leaf.
- Make its outline on paper and mark the green and non green areas on the outline.
- Test the leaf for starch. Only the green parts of the leaf turn bluish, showing the presence of starch.
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