Question

how to check the present of starch in a leaf whit a help of a diagram

Answer 1

to check the presence of starch in a leaf you have to perform an activity tickerplant put the plant in a dark room where there is absence of Sunlight not take a leave from the plant and boy the leaf in alcohol now put the leaf in potassium permanganate solution now now the area which consume starch will turn into blue black.....


hope it helps !!!!

Answer 2

$\textbf{Answer :}$


$\textbf{How to check the presence of starch in leaves ?}$


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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