Question

12. One of the leaf of a potted plant was covered with black paper and is placed in the
sunlight for few hours. After some time leaf was tested for starch. What changes will you
observe in the leaf and why?​

Answer 1

Answer:

Yes, there will be difference in results of two experiments.This is because, since it was kept in a dark room where there was no sunlight, the plant was unable to prepare the food by photosynthesis. An whne kept in sunlight, the plants prepare food which results in leaf turning blue-black as there is presence of starch.

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Answer 2

Answer:the answer attached as tag

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Explanation: