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Biology, 12.09.2021 04:50 amelvin41

Pratik was performing an experiment to test for the presence of starch and glycogen in different types of foods. He treated four food samples with a Lugol's
iodine reagent. This solution is brown-yellow, but it produces a blue-black color
when it reacts with starch and a brown-blue color when it reacts with glycogen.

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