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20/10/2021 7:13 pm
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In an experiment to test the presence of starch in a leaf, the leaf is boiled in alcohol for a few minutes using a water bath. This is an essential step in the experiment because of alcohol
(1) softens the leaf
(2) disinfects the leaf
(3) allows iodine to enter the leaf
(4) dissolves chlorophyll from leaf
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20/10/2021 7:14 pm
Correct answer: (4) dissolves chlorophyll from leaf
Explanation:
Boiling the leaf in alcohol before testing the presence of starch in a leaf is an essential step. It removes the chlorophyll from leaves.