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Wiki User
∙ 12y agolugol's iodine stain stops the activity of the cell.
Wiki User
∙ 9y agoAn iodine stain, specifically Lugol's iodine stain, stops the activity of the cell. It is a vital stain which means that it kills whatever specimen it is staining.
Wiki User
∙ 13y agoThey kill the cell
Wiki User
∙ 13y agoIt stops the activity within the cell.
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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.
What are some little known facts about iodine?
Iodine is used in practical experiments such as the onion cell experiment. Iodine will help make the cells visible. Iodine, should it be spilt on skin, can stain skin and will take quite some time to wash off.
How is iodine used as a mordant?
As per the exact chemistry, I am unsure, but basically the iodine acts to "set in" the stain by reacting the dye (crystal violet) from the previous step with the peptidoglycan layer, forming a layer which is now insoluble in the following step where the layer is washed with EtOH. If the cell is Gram (-), the iodine doesn't do much and the dye is washed away.
Which part of the plant cell has starch?
Iodine binds to starch and would be primarily used to stain plant cells. The organelles that would be stained darkest would be the nucleus, amyloplast, which store starches, and chloroplasts which produce it.
What happens to endosperm after applying iodine solution?
the endoSPERM searches for a egg cell and and forms a zygote around the process of iodine solution. WILL YOU EVER BELIEVE THIS DUDE?
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.
What does iodine do to the activity inside the cell?
It stops the activity within the cell.
What is the value of simple stain?
A simple stain like iodine can make cell parts show up that would otherwise be nearly invisible since they are colorless.A simple stain like iodine will reveal a cell's morphology.
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 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 stain used to staines the cell membrane?
we can use feulgen's method ,in which malachite green stain is used to stain the nucleus
Why does lugol's iodine stain a cell?
iodine indicates polysaccharides, therefore plant cells can be stained with iodine, staining the chloroplasts- composed of starch(a polysaccharide), and the cell wall- composed of cellulose ( a polysaccharide)
Why gram's iodine called a mordant?
Gram's iodine is called a mordant because it fixes the primary stain to the cell wall and adds any color.
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.
Why do you stain a cell with iodine?
Iodine is an important "marker element" in biology. It is used to trace certain substances such as DNA or RNA during analysis of nucleic acids in a cell. When observing a cell, iodine is used to mark the DNA or RNA in the nucleus and mitochondrion of a cell for easy viewing. So in a way, iodine is a fluorescent organelle highlighter or tag.
Does potato have nucleus?
Yes, you might just have to stain the cell with iodine. The starch in the cell might block viewage of the nucleus still. It's there though.
What is the mordant in a gram stain?
Gram's iodine stain is applied after the culture is stained with the primary stain. It acts as a mordant, fixing the primary stain to the cell wall while lending no additional colour to the cell (i.e. the mordant itself is not a stain). The mordant is only able to fix the stain to Gram-positive bacteria because of the characteristic thick, peptidoglycan coat that they possess. Because the mordant is not able to fix the stain to Gram-negative bacteria (who's coat have a different composition), the crystal violet stain will wash away from Gram-negative bacteria when the decolourizing agent is added.
