Question

How would you test the presence of starch in leaves?

Answer 1

First take a potted plant keep in a dark room for 24 hrs, then test with methylated spirit and iodine

Answer 2

The presence of starch in leaves can be tested by an iodine test. Then we remove chlorophyll from the leaf by boiling it in alcohol. After that, add a few (or just 2) drops of iodine solution. If the colour changes blue-black, it contains starch.