Question

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Answer 1

a) Boil a leaf in boiling water for 30 seconds. This will kill the leaves and stop any chemical reactions.

Now, add the blanched leaves to the boiling ethanol in the water bath for a few minutes.

Boiling ethanol will dissolve the chlorophyll and remove the green color from the leaves.

b) The leaves containing starch will turn blue-black.

  When treated with iodine solution, iodine complexes with starch to give      a dark blue-black color.

c) Fungi

  It cannot carry out photosynthesis due to the absence of chlorophyll and chloroplast pigments.

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