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Brittle
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∙ 11y ago
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What was the colour the clear alcohol become once the leaf is boiled in it?
what colour does the clear alcohol become once the leaf is boiled in it
What happens to the color of the alcohol when a leaf is boiled in it?
It does nothing apart from semi fermint the leaf
What color does the clear alcohol become once the leaf is boiled in it?
It really depends on the type of leaf and the color of the leaf.
Why was the leaf placed in alcohol after being in boiling water?
The leaf was placed in alcohol wafter being placed in the boiling water to extract the green pigment from the leaf.
What happens when you put a leaf in boiling alcohol?
it turns green because the chlorophyll is evaporated out
When a leaf becomes crispy after being boiled in ethanol how do you remove it?
by immersing it in a hot water bath
Why did leaf had to be boiled in ethanol when testing leaf for starch?
Ethanol dissolves chlorophyll hence further phtosynthetic activity is stopped in the abscence of light and the leaf becomes transparent (colorless). the colorless leaf takes better stain with iodene while testing for the presence of starch.
When testing for starch why the leaf is boiled?
to denature the enzymes going to kill the leaf
What is the purpose of covering the leaf with iodine?
if you cover a boiled leaf in iodine you can see how much starch is in the leaf
Why does leaf turn light green when boiled in ethanol?
add the leaf to boiling ethanol in a water bath for a few minutes (the boiling ethanol dissolves the chlorophyll and removes the green colour from the leaf - it turns white so it is easy to see the change in colour) wash with water to rehydrate and soften the leaf
Why did the alcohol turned green when the leaf was put into it?
Alcohol is a solvent: It dissolves stuff. The leaf is porous, full of holes. When the leaf is placed in the alcohol, the alcohol gets into the leafs, and dissolves the pigments in the leaf, probably chlorophyll, which is green. This will turn the alcohol green.
What is extracted from boiled leaf?
Air. Basically that's the answer.
