Question

Which solution is used t to test for the presence of starch in leaf?

Answer 1

the solution used to check the presence of starchina leaf is iodine. it turns blue black in the presence of starch.

Answer 2

$\textbf{Answer :}$


$\huge\textbf{Starch presence in Leaf :}$


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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