Question

To show that starch is formed in the leaves
● Take a green leaf from a plant exposed to sunlight for about 8-9 hours. On
a green leaf we will not be able to see how colour changes with iodine. The
chlorophyll of the leaf which makes leaf green will have to be removed. This
means the leaf will have to be bleached. For this, boil the leaf in water and
then soak it in warm alcohol as shown in the diagram and then wash with
water to remove the alcohol. The chlorophyll pigment will come out of the
leaf cells and will dissolve in alcohol.
● Put this leaf on a white plate and pour a few drops of iodine on the leaf. Do
you see any change in the colour? Write your observation in your notebook.
What does this activity shows? This activity shows that starch (food for the material needed for experiment , boiling leaf in water , leaf soaked in warm alcohol , leaf washed in water , pouring iodine on leaf , blue black colour show the presence of starch



Do the experiment and follow me​

Answer 1

Answer:

I have done this before

Explanation:

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