Ravi wants to prove that light is necessary for photosynthesis. He covers part of a leaf with black paper. After 48 hours, what should he use to test for the presence of starch?
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Worked Solution
Step 1: The product of photosynthesis (glucose) is stored as starch.
Step [2-9]: Iodine solution turns dark blue/black in the presence of starch.
Step [2-9]: This confirms if photosynthesis occurred in the light vs dark areas.
Correct answer: Iodine solution
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