Question

How would you test the presence of starch in leaves? in short​

Answer 1

Answer:

answer

Explanation:

Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)

Answer 2

ʜᴇʀᴇ'ꜱ yᴏᴜʀ ᴀɴꜱᴡᴇʀ

Activity:

To test the presence of Starch in leaves

Procedure:

(i)Take a leaf from a healthy potted plant

(ii)Keep the leaf in boiling water

(iii)Now, take the leaf out

(iv)Take a little alcohol in a beaker and put the leaf in it

(v)Now take the vessel and fill half of it with water

(vi)Keep the vessel on the beaker and the alcohol beaker in it

(vii)Now take the beaker out and the leaf out of the beaker

(viii)Wash the leaf in running water

(ix)Add 2 - 3 drops of iodine to it

(x)If the leaf turns blue - black in colour, the leaf contains Starch

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