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to kill the cell which disrupt the cell membranes and softens the cuticle and cell walls
What else can I help you with?
Why did the leaf turn brittle in testing a leaf for starch?
The leaf turns brittle during the testing the leaf for starch because the ethanol extracts the all water content from the leaf.
Why do we have to boil leaf in water what happens if this step is not done?
Boiling a leaf in water is a crucial step in experiments such as testing for starch because it helps to break down the cell walls, making the starch more accessible for detection. If this step is skipped, the starch present in the leaf may not dissolve properly, leading to inaccurate or inconclusive results when testing for its presence. Additionally, boiling denatures enzymes that could interfere with the test.
Why do you have to boil a coleus leaf to check it for starch?
Boiling a coleus leaf helps to kill the cells, stopping any metabolic processes, and makes the leaf more permeable for testing. This step also removes chlorophyll, allowing for clearer observation of the starch presence. After boiling, the leaf is usually treated with iodine, which will turn blue-black in the presence of starch, indicating its presence in the plant tissue.
When testing for starch why the leaf is boiled?
to denature the enzymes going to kill the leaf
Why do you put leaf in boil water for a few minutes?
To brew you drink. The hot water releases chemicals in the leaf.
How long do you boil a cactus leaf before eating it?
10 to 15 minutes
What will happen when you boil a green leaf in a test tube?
It's cell walls will break down and the leaf becomes soft/flaccid
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.
When testing a leaf for starch why do you have to boil the leaf in water first?
so the waxy cuticles can rub off the surface of the leaf. a leaf has a cell wall and if you did not put the leaf in the boiling water it would not break down so therefore you would not be able to do a proper starch test on the leaf so the answer to this question is to break the cell wall down so you can test for starch properly i hope i helped you :) yeap
Why is the leaf discolored when testing for starch?
When testing for starch, the leaf is boiled in alcohol to remove the chlorophyll that may mask the iodine-starch color change. If the leaf turns blue-black after applying iodine, it indicates the presence of starch. If the leaf remains discolored, it suggests that starch is absent, as the iodine did not react with any starch molecules present in the leaf.
Why boil a leaf for a starch test?
Boiling a leaf for a starch test is done to remove any pigments or chlorophyll present in the leaf that could interfere with the test results. The heat breaks down the cell membranes and denatures enzymes that could potentially affect the starch test. Boiling also helps to soften the leaf tissue, making it easier to extract the starch for testing purposes.
What will happen to the boiling leaf when in ethanol what will happen to the leaf and the ethanol?
When you boil a leaf in ethanol, the ethanol will extract the pigments and other compounds from the leaf. The chlorophyll will dissolve in the ethanol, causing the leaf to lose its green color and appear pale. The ethanol will take on the color of the extracted pigments, turning it into a green solution.
