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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
What else can I help you with?
Should I boil the water first and then add bleach or add bleach then boil?
If you want the water to be more than hot enough to activate the bleach, then boil the water first. Boiling bleach is not advised, because that would produce deadly chlorine gas.
Which will boil first salt water or plain water?
salt water boiled first i had to do an experiment and salt water won
Why is it necessary to boil the ethanol tube in the water bath to test the starch in green leaf?
Boiling the ethanol tube in a water bath is necessary to remove chlorophyll from the green leaf, which can interfere with the starch test. The heat helps to break down the leaf's cellular structure, allowing the ethanol to extract pigments effectively. Once the chlorophyll is removed, the leaf can be tested for starch presence using iodine solution, which will turn blue-black in the presence of starch. This process ensures accurate results in identifying starch accumulation in the leaf.
Will salt water boil or will regular water boil?
Both salt water and regular water will boil. However, salt water will have a higher boiling point than regular water due to the presence of salt in the solution.
Why do you have to boil the leaf in water for the second time?
Boiling the leaf in water a second time helps to soften the leaf tissue further and remove chlorophyll, making it easier to observe the presence of starch. This process ensures that any starch present can be revealed by subsequent treatments, such as iodine staining, which will turn blue-black in the presence of starch. Additionally, it helps to eliminate any remaining pigments that could interfere with the experimental results.
How do you dissolve starch in water?
Starch dissolves in boiling water. As a result, the most useful method is to boil water in a pan, and add starch, stirring until it is dissolved.
When you're making ramen noodle soup should you boil the water first and then add the noodles or boil the water and noodles at the same time?
you need to boil the water first then add the noodles
Which water boils first deminlize water or salted water?
water will boil first not salted water
How do you find out how healthy your aquifer is?
You can find out how healthy your aquifer is by testing the water for microbes. If the water contains microbes, boil it before drinking it.
Why dou use so much water to boil noodles?
Pasta added to water before it starts to boil gets a heat start on mushiness. Pasta quickly begins to break down in tepid water as the starch dissolves. You need the intense heat of boiling water to "set" the outside of the pasta, which prevents the pasta from sticking together. That's why the fast boil is so important; the water temperature drops when you add the pasta, but if you have a fast boil, the water will still be hot enough for the pasta to cook properly. http://whatscookingamerica.net/Pasta_Rice_Main/pasta.htm
What kind of solution you get when you mix starch in water?
It depends on how much percentage of of starch solution is to be made. For an example: To make 20% of Starch Solution, you need to pour 20grams of starch powder in 100ml of water. After the powder is dissolved, boil the water. - Ridwan T. Haque International School Dhaka Class of 2009
Should I boil the water first and then add bleach or add bleach then boil?
If you want the water to be more than hot enough to activate the bleach, then boil the water first. Boiling bleach is not advised, because that would produce deadly chlorine gas.
How can you remove the starch from a leaf?
To remove starch from a leaf, you can perform a simple experiment using iodine solution. Boil the leaf in alcohol to remove the chlorophyll, then soak it in hot water to soften it. After that, rinse the leaf with cold water and apply iodine solution — the starch will turn blue-black, indicating its presence.
How do you starch clothes?
1. Mix a package of starch in a little amount of water to dissolve it 2. Boil water in a pot and pour it into it mixtures the dissolved starch and water 3. Stir well the boiled mixtures to prevent lumps from forming 4. Add cold water to produce the desired consistency 5. Starch the wet white garments first 6. Soak each piece in the liquid starch and squeeze 7. Wring and hang the garments to dry 8. Keep the dry clothes in a box pror to ironing
Which will boil first salt water or plain water?
salt water boiled first i had to do an experiment and salt water won
How do you reinforce fabric?
In order to harden fabric you need to use some kind of starch. The type is dependent on why you need the fabric hardened. For a low-level starch you can use spray starch and an iron (simply spray it on, let it soak in and iron it), for something a little more stiff use a commercial product (something like Plaid's "Stiffy") or a homemade starch solution (you can buy starch in the grocery store - you boil it in water and then soak the fabric in it).Many commercial starches can be painted on with a paintbrush too. You an make a starch from sugar Boil 1/2 cup sugar in 2/3 cup water - let cool and dip the doily and shape and let dry-
Is it safe to drink clear water?
Not necessarily, If in doubt boil it first.
