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Photosynthesis, the process by which glucose(and by proxy, starch) is produced requires chlorophyll, which gives leaves the green colour.
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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.
What are the smaller parts that make up proteins starch and DNA?
The single units of polymers such as proteins, starch and DNA are called monomers.
Why variegated leaves accumulate less food then non variegated leaves?
variegated plant cells are deficient in chlorophyll hence these are not capable of carrying out photosynthesis so efficiently, hence less vigorous.
What monomers make up the polysaccharide starch?
Glucose monomers make up the polysaccharide starch.
Do non green leaves have starch present in them?
Some have and some not... But we say mostly non green leaves🍂 do not have.. 🍃🌳🌲🍀☘️🌿🌱
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.
What is water in a leaf used for?
They are used for the process of photosynthesis , that is preparing starch .
What would be the conclusion after testing a leaf for starch?
Starch is produced by leaves during Photosynthesis, therefore if the leaf has not been exposed to light then it will not contain starch, and so when tested the Iodine will stay Yellow/Brown. Consequently if the leaf has been left in the light Photosynthesis will have taken place and when tested the Iodine will go Blue/Black showing that Starch is present. Hope this helps :)
What are the smaller parts that make up proteins starch and DNA?
The single units of polymers such as proteins, starch and DNA are called monomers.
What part of the leaf capture the sunlight?
The green leaves are the bit that absorbs in the sun to make Photosynthesis.Also if you want to test for starch to boil the leaf till it goes white then drip some Iodine And look for a signs traces of starch. That is the long way to find out if the leaves are the ones who develop the phase of Photosynthesis. Hope this helps!
What monomers make up the polysaccharide starch?
Glucose monomers make up the polysaccharide starch.
How do you make rice starch at home?
It simple to make rice starch at home by boiling the rice.
Why variegated leaves accumulate less food then non variegated leaves?
variegated plant cells are deficient in chlorophyll hence these are not capable of carrying out photosynthesis so efficiently, hence less vigorous.
How many carbohydrates does it take to make one starch?
Starch is a carb.
Does starch make your head big?
Yes. Starch is high in fat.
What is the result of the Test for the presence of starch in a leaf?
Method Half fill a beaker with boiling water and add a large test tube that is a quarter full of ethanol. Allow the ethanol to come to the boil. Do not heat the ethanol in a Bunsen burner flame. This is not safe because ethanol is highly flammable. Take a leaf that has been sitting in good light for at least a few days, and soften on the boiling water for ten seconds or so. Then add to the ethanol and allow to boil for about a minute until all the colour disappears from the leaf. Remove the leaf from the ethanol. Put it back in the hot water to soften for 10 seconds. Spread the leaf out on a white tile and use the iodine solution to test for starch A blue-black colour indicates starch is present. This experiment can be repeated with leaves that have been left in the dark. or have been deprived of carbon dioxide.
Do non green leaves have starch present in them?
Some have and some not... But we say mostly non green leaves🍂 do not have.. 🍃🌳🌲🍀☘️🌿🌱
