Q1 of 22 Page 82

A green leaf that has fallen down from a plant is taken and is kept in water for sometime and then taken out; It is then dipped in spirit and iodine solution. The leaf turns bluish indicating the presence of

Plants go through a process called photosynthesis. A part of this process, plants have to store extra food in its tissue as starch. When you dip it in iodine solution, which is an indicator that turns the leafs colour bluish in the presence of starch. This shows that the leaf has been performing photosynthesis and producing starch.

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