Question

Sources of error in testing for starch in photosynthesis

Answer 1

Explanation:

A positive test for starch in a leaf provides evidence that photosynthesis has occurred. The test for starch is a leaf is an is an extension of the Iodine Test for Starch. Glucose is the product of photosynthesis, and is rapidly converted to granules of starch - a polymer of glucose - for storage

In the leaf, excess glucose is rapidly converted to starch, so we test leaves for starch to show that photosynthesis has happened, rather than testing for glucose. ... You could demonstrate the effect of iodine solution on starch by adding a few drops of solution to a starch powder or starch suspension in a boiling tube.

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Answer 2

Answer:

$<font color= "red">$Hey mate answer of your question is given below by me..

Explanation:

The presence of starch in leaves can be tested by the Iodine test. When we remove chlorophyll from the leaf by boiling it in alcohol and then put two drops of iodine solution, it is colour change to blue indicates the presence of starch.

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