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When using iodine on a potato or corn the iodine turns black What is this evidence of?
Presence of starch.
Is there a method for detecting starch without using iodine?
if you put iodine in food and it contains starch it should change color.
How do forensic scientists find fingerprints using iodine?
hold it in there hands
How do you make hydriodic acid using iodine?
Mix RP with dH20. Make sure you chill it in a ice water bath and add iodine crystals.
Which colour indicate a negetive test when starch is absent?
If you're using iodine, a negative test will be the color of the iodine solution, which should be a brownish color.
What was the purpose of using iodine?
Iodine is used when you are looking under a microscope to view whatever you are looking at better.
What happens if grams iodine is not applied after staining with crystal violet?
If the iodine in the Gram's stain was omitted, the crystal violet which enters the cell will not be able to form the Crystal Violet Iodine (CVI) complex. The CVI complex molecule has a larger size than that of Crystal violet molecule and hence Gram +ve bacteria are able to retain the stain. If iodine were omitted, even Gram+ve cells would get decolorised by Alcohol treatment and would be seen as Gram-ve cells.
What is iodine used to see when using a microscope?
Iodine can be used to identify starch.
When using iodine on a potato or corn the iodine turns black What is this evidence of?
Presence of starch.
Why use iodine when preparing slide for viewing?
one disadvantage of using iodine to stain cells is that iodine will kill living cells.
What are the nutritional benefits of iodine?
Iodine is very useful for our body. Iodine deficiency can cause thyroid. So just check your iodine level in your salt which you are using in your food. Better use Iodine Salt.
What do the particles look like in gas?
At the molecular level iodine gas contains I2 molecules, which if you could see them ( they are too small to be seen using light) and you were able to see the electron density then they would appear as small dumbells. When iodine sublimes the colour of the "gas" is violet this due to the aborption of visible light by the I2 molecule.
Why does iodine work when using to find fingerprints?
probably because iodine sticks to the oil from your fingers
What is the gland doctors image with iodine-131?
The thyroid gland is often imaged using a salt of iodine-131 as this gland has a high uptake of iodine.
Name a substance that can be tested for using iodine?
leaf
is iodine tincture the same as just plain iodine?
No. Iodine is an element, a halogen, and thus is usually found as a salt. A tincture is a solution (of anything) using alcohol as the solvent.
What is the purpose of using computer?
purpose of using computer
