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What else can I help you with?
Why did leaf had to be boiled in ethanol when testing leaf for starch?
Boiling the leaf in ethanol removes chlorophyll, which can interfere with the test for starch using iodine. This process helps to ensure accurate detection of starch in the leaf tissue without any color interference from chlorophyll.
Why variegated leaves accumulate less food then non variegated leaves?
Variegated leaves have less chlorophyll due to the areas of tissue lacking pigmentation, so they are less efficient in photosynthesis compared to non-variegated leaves. This results in lower food production and accumulation in variegated leaves.
Do non green leaves have starch present in them?
Yes, non-green leaves that are exposed to light can still contain starch. Starch is produced through photosynthesis, so any leaf that is actively producing energy through photosynthesis can accumulate starch, regardless of its color.
What monomers make up the polysaccharide starch?
Glucose monomers make up the polysaccharide 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 did leaf had to be boiled in ethanol when testing leaf for starch?
Boiling the leaf in ethanol removes chlorophyll, which can interfere with the test for starch using iodine. This process helps to ensure accurate detection of starch in the leaf tissue without any color interference from chlorophyll.
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 :)
Variegated variety of chalcedony used to make pestles?
Moss agate is a variegated variety of chalcedony that is commonly used to make pestles due to its durable and smooth texture, making it ideal for grinding and crushing purposes.
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!
Why variegated leaves accumulate less food then non variegated leaves?
Variegated leaves have less chlorophyll due to the areas of tissue lacking pigmentation, so they are less efficient in photosynthesis compared to non-variegated leaves. This results in lower food production and accumulation in variegated leaves.
Do non green leaves have starch present in them?
Yes, non-green leaves that are exposed to light can still contain starch. Starch is produced through photosynthesis, so any leaf that is actively producing energy through photosynthesis can accumulate starch, regardless of its color.
Do plants need soil to make starch?
No, plants do not require soil to make starch. Starch is synthesized during photosynthesis, where plants use sunlight, water, and carbon dioxide to produce glucose, which is then stored as starch in various plant parts such as roots, stems, and leaves. Soil provides nutrients and support for the plant but is not directly involved in the production of starch.
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.
What is a Branded variegated variety of chalcedony used to make pestles and mortars?
Moss agate is a branded variegated variety of chalcedony that is sometimes used to make pestles and mortars. It typically exhibits green inclusions that resemble moss or ferns, giving it a unique and attractive appearance for such use.
Can you compress starch to make it hard?
No, compressing starch will not make it hard. Starch is a polysaccharide that forms a soft, powdery substance, regardless of compression. Heating and cooling can alter the texture of starch, but simply compressing it will not make it hard.
How do you make rice starch at home?
It simple to make rice starch at home by boiling the rice.
What is water in a leaf used for?
Water in a leaf is used for photosynthesis, which is the process by which plants make their own food. Water is essential for transporting nutrients and minerals from the soil to the leaves, and it also helps to maintain the turgidity of plant cells, allowing the leaf to remain rigid and upright for efficient light absorption.
