Question

How would you test the presence of starch in leaves

Answer 1

The hot water kills the leaf and the alcohol breaks down the chlorophyll , taking the green colour out of the leaf, when u put iodine on the leaves one of them will turn blue black and the other will be reddish brown..iodine is an indicator that turns blue black in the presence of starch

Answer 2

Answer:

• Step 1, = A fresh leaf is taken .

• Step 2, = The leaf is boiled in water for few minutes to soften the cells in the leaf .

• Step 3 = Now , dip the leaf in iodine solution.

• Step 4= The colur of the leaf will changed into blue - black colour when iodine is added to it which shows the presence of starch in it .

✌️HOPES IT WILL HELP YOU