0
The cells all burst and the leaf looses turgidity = the leaf dies
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoChlorophyll comes out
Add your answer:
Earn +20 pts
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 a leaf for starch why is it rinsed in cold water after it is boiled?
After the leaf has been placed in ethanol it becomes very brittle. It is then rinsed in cold water so as to soften it and makes it more manageable for the addition of iodine.
Describe the movement of particles through a green leaf?
The vasculature inside the green leaf moves a number of particles of food, water, minerals and gases.
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
Which leaf would contain more chlorophyll a dark green leaf or a light green leaf Is this a trick question?
this is not a trick question it just needs thought a dark green leaf would have more chlorophyll because chlorophyll is the substance that causes the leaf to turn green
What happens when green leaf is boiled in water?
it will make holes
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
What change is observe when a leave was boiled in warm water in a experiment?
The grammer is wrong here...should be "what change is observed when a leaf was boiled in warm water in an experiment".
What happen when green leaves boiled in water?
turns pale
When a leaf becomes crispy after being boiled in ethanol how do you remove it?
by immersing it in a hot water bath
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
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 a leaf for starch why is it rinsed in cold water after it is boiled?
After the leaf has been placed in ethanol it becomes very brittle. It is then rinsed in cold water so as to soften it and makes it more manageable for the addition of iodine.
Why green leaves turn pale when boiled in water?
on boiling leaves loose chlorophyll
When testing for starch why the leaf is boiled?
to denature the enzymes going to kill the leaf
Describe the movement of particles through a green leaf?
The vasculature inside the green leaf moves a number of particles of food, water, minerals and gases.
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
