During a practical lesson to investigate the presence of starch in a leaf, the following steps were followed: The leaf was exposed to sunlight for...

During a practical lesson to investigate the presence of starch in a leaf, the following steps were followed:
The leaf was exposed to sunlight for sometime
The leaf was dipped in boiling it
The leaf was then boiled in methylated spirit
The leaf is finally dipped in warm water
What is the importance of these steps?

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The leaf was exposed for sometime to allow the process of photosynthesis to proceed.
The leaf was dipped in boiling water to open the starch grains.
The leaf is boiled in methylated spirit to decolorize it.
The leaf is dipped in warm water to soften it.

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Faimus answered the question on December 5, 2017 at 18:24

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