Question

Take two stripes of black paper and cut out out a small square in their centres cover a part of two broad leaves of a potted plant with this paper keep the plant in the sunlight for three four days perform iodine test for 1 leaf did the two parts covered and uncovered show upany difference in results now remove the strip of the second leaf and expose the cover to the sunlight for two three days and do the iodine test against describe your observations for both cases by giving reasons

Answer 1

In the first case, the plants leaf will not grow and it will be dull and weak. But in second case, the leaf will grow and it will be healthy because it receives required sunlight.


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