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iodine
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∙ 10y ago
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Why do you use iodine to stain a cell?
Iodine stains starch contained in cells. Iodine is also used to distinguish between Gram negative and Gram positive bacteria. The Gram stain contains iodine.
What is the use of Iodine in gram stains?
The iodine in the gram stain serves as a mordant or fixative.
Is Iodine a soild or gas?
Elemental iodine is a solid. But it is a volatile solid in that chemists will use solid iodine in a chamber to "iodine stain" substances in thin layer chromatography. Thus iodine is like having a volatile solid.
What is the bond length of iodine in its structure?
Bond length of iodine: 266,6 pm.
Why is gram's iodine called mordant?
Gram's iodine is called a mordant because it fixes the primary stain to the cell wall and adds any color.
How do you remove iodine stain from paper?
The iodine stain can be removed from the paper by washing the stain in plenty of cold water. Paper distillation can also be used to remove the iodine stain from the paper.
The name given to a liquid used to make cells structures easier to see?
Stain . Iodine is one.
What is the importance of iodine after primary stain?
Iodine work as a modrant which helps in fixing the stain properly by making a compled compoun of stain and cell wall.
Why do you use iodine to stain a cell?
Iodine stains starch contained in cells. Iodine is also used to distinguish between Gram negative and Gram positive bacteria. The Gram stain contains iodine.
What does lugol's iodine stain do to the activity of the cell?
I just did a lab in biology called "How Plant and Animal Cells Differ" and in the packet it had that question. The answer is: Lugol's iodine stain stops the activity of the cell. It kills whatever specimen it is staining.
What is the difference between Iodine bought in a pharmacy and the Iodine stain solution?
The iodine stain solution you're referring to might be Lugol's iodine. This is iodine and potassium iodide in water. The product available in a pharmacy is tincture of iodine which is iodine and potassium iodide in ethanol and water. Please see the links.
What is the secondary stain in gram stain procedure?
It is crystal violet & stains all cells purple.
Which stain you should use to stain onion peel?
Both Iodine and Methylene Blue will work - iodine is probably used more often for onion.
What is the use of Iodine in gram stains?
The iodine in the gram stain serves as a mordant or fixative.
What structure in the cheek cells was stained the darkest?
When stained with iodine and observed under a compound microscope the nucleus will stain the darkest. The cheek cell is frequently employed here as they are simple to collect and tend to take the stain easily.
Why are stains such as iodine used to observe cells under the microscope?
Iodine is used to stain the cell. It makes each component of the cell more visible, especially the nucleus.
Why use iodine when preparing slide for viewing?
one disadvantage of using iodine to stain cells is that iodine will kill living cells.
