How do you test the presence of starch in leaves? 2 mark answer
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Iodine solution is used to test the presence of starch
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"Iodine solution" is used to test the presence of starch in leaves.
Process:
(1) heat the leaf in boiling water for 30 seconds.
(2) heat that leaf in boiling ethanol for a few minutes.
(3) wash that leaf with water and spread it onto a white tile.
(4) now drop some iodine solution onto that leaf.
"Iodine solution" is used to test the presence of starch in leaves.
Process:
(1) heat the leaf in boiling water for 30 seconds.
(2) heat that leaf in boiling ethanol for a few minutes.
(3) wash that leaf with water and spread it onto a white tile.
(4) now drop some iodine solution onto that leaf.
Wait for a few minutes, now the parts of that leaf which contain starch will turn blue-black.
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