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what is the purpose of putting the leaf with ethanol?

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  • what is the purpose of putting the leaf with ethanol?


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Answer #1 | 14/01 2014 09:53
When testing a leaf for starch the ethanol extracts the chlorophyll and decolourises the leaf so that a coloor change can be seen when iodine is added.
Positive: 57.142857142857 %
Answer #2 | 14/01 2014 09:47
A little more information would be helpful . . . But maybe you are trying to extract chlorophyll?
Positive: 50 %
Answer #3 | 14/01 2014 09:43
We don't know for certain, but I'm betting it was to dehydrate the leaf by osmosis.
Positive: 50 %

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