Question

presence of starch in leaves

Answer 1

Heya !!!

Here's your answer !!!

The presence of Starch in leaves can be tested using Iodine solution...

▶Boil the leaf in alcohol using a bath tube to remove the chlorophyll present in the leaves...

▶Now put the leaf in Iodine solution....

▶The presence of Starch can be evidenced if the leaf turns blue-black colour when it is kept in Iodine solution...

Hence , in this way presence of Starch can be tested....


Hope this helps you :)

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Answer 2

$\huge\mathfrak{Answer :}$


Take a potted plant and put in a dark room.

After sometime pluck a leave from the plant.

Then boil it in water for 5 min to soft it and after doing that place the leave in a test tube containing alcohol.

Place the test tube in a beaker containg water.

Then, genlty heat the beaker till the alcohol dissolves in the chrolophyll and the leaves loses its green colour.

Wash the leaf and Water.

After doing that place the leaf on a plate and add a few drops of iodine solution.

The parts that turn blue black show the presence of starch in a leaf.

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