how would you test the presence of starch in leaves
Class 7th science
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2
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)
Answered by
3
Answer:
Using an iodine solution
Explanation:
A leaf is boiled in ethanol and then dipped/soaked in iodine solution.
After some time you will see that the parts of leaf which contains starch turns blue-black in colour.
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