Question

a healthy plant with green leaves was selected.It was kept in a dark room for 36 hours . the same potted plant was kept in sunlight for 4 hours. After which a leaf was plucked and first boiled in hot water then in alcohol.After this iodine was used to conducted starch test
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Answer 1

Answer:

The hot water kills the leaf and the alcohol breaks down the chlorophyll, taking the green color out of the leaf. When you put iodine on the leaves, one of them will turn blue-black and the other will be a reddish-brown. Iodine is an indicator that turns blue-black in the presence of starch. The leaf that was in the light turns blue-black, which demonstrates that the leaf has been performing photosynthesis and producing starch.