Question

After adding iodine colour change in parts A B and C of the leaf is seen. give reasons for the observation​

Answer 1

Explanation:

Then it is boiled in alcohol to remove all the plant pigments. When we add iodine to this leaf, it reacts with the starch present in the leaf (if any) and turns blue-black. The presence of this color is an indicator of the photosynthetic ability of the plant and the presence of starch in it.