Question

How to prove chlorophyll is needed for photosynthesis?

Answer 1

to prove that chlorophyll is needed for photosynthesis we can perform an experiment by using iodine solution. A plant can be ‘de-starched’ by leaving it in the dark for a few hours. Parts of its leaves are covered with dark paper, and the plant is left in the light for a few hours. Only the uncovered parts become blue-black with iodine solution, showing the importance of light in photosynthesis.