Question

2. While testing the presence of starch in the leaves, why the leaf is boiled in methylated spirit over a water bath?
Name one precaution you have followed in this experiment.​

Answer 1

This procedure kills a leaf, disrupts the cell membranes and softens the cuticle and cell walls. This makes it possible to extract the chlorophyll with hot ethanol and also allows the iodine solution to penetrate the cells and react with any starch present.