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Why you use iodine in onion?
Iodine stains the onion so it is easier to see the cellular features, such as the nucleus, cell wall, and cytoplasm.
How did iodine solution affects the image of the onion cells?
Iodine solution stains the starch granules in the onion cells, making them appear darker under a microscope. This helps visualize the structure and distribution of the starch granules within the cells, providing information about the cellular organization of the onion tissue.
Why use iodine on onion slide?
Iodine is used on onion slides to stain the cells so that the nucleus becomes more visible under a microscope. This staining technique helps enhance the contrast between the different cellular structures, making it easier to observe and study them.
Why do you put iodine on onion not rhubarb?
Iodine is used to test for the presence of starch in a substance. Onions contain starch, which reacts with iodine to produce a blue-black color. Rhubarb does not contain a significant amount of starch, so it will not produce the same reaction with iodine.
When a onion cell is stained with iodine which organelles are you not able to see under a compound light microscope?
Under a compound light microscope, you would not be able to see specific organelles like the lysosomes, peroxisomes, endoplasmic reticulum, and Golgi apparatus in an onion cell stained with iodine. These organelles are typically smaller and/or transparent, making them difficult to visualize with this type of microscope.
Why you use iodine in onion?
Iodine stains the onion so it is easier to see the cellular features, such as the nucleus, cell wall, and cytoplasm.
What is the purpose of adding iodine solution to the onion cell?
The purpose of adding iodine solution to the onion cell is to stain the cell's starch granules. Starch granules will appear blue-black when iodine solution is added, allowing for easy visualization of the presence of starch in the cell.
What color does iodine turn a onion?
When iodine comes into contact with starch, it forms a blue-black complex. Therefore, if you were to apply iodine to a cut onion, the starch present in the onion cells would react with the iodine, turning the onion a blue-black color. This color change is a common test for the presence of starch in biological samples.
What was the purpose of adding iodine to the onion skin?
The reason why people add iodine to onion skin is so that its gets a color and so you can see it better.
Do onions contain iodine?
This may be an average rather than a specific onion, but onions in general contain 1.1g of protein for every 100g of onion. Again, different variety of onions may contain less or more, but yes, they do contain some protein.
What would happen to an onion cell in distilled water?
When salt is added to onion cell, the cytoplasm shrink due to plasmolysis. When water is added to onion cell, the cytoplasm expands back to its initial shape due to deplasmolysis.
What is the effect of iodine on onion cell?
Iodine solution is usually used for starch test. It colors the cell blue-black if the starch is present. Onion does not have starch. Hence it will not turn blue-black when iodine solution is added. However it does have its use in staining the cell.Similar questions:Does_onion_juice_contain_starch
What does effect iodine have on the onion cells?
Iodine is often used to stain onion cells to make the cell structures more visible under a microscope. The iodine solution will stain specific cell components such as the cell walls and starch grains, allowing for easier observation and analysis of the cells.
Which stain you should use to stain onion peel?
To stain onion peel cells, you should use a stain called iodine. Iodine is commonly used to stain cells because it binds to starches and glycogen in the cells, making the cells more visible under a microscope.
How is onion oil prepared?
Heat an onion on a frying pan OS a saucepan or something similar and after a few minutes drops of onion oil will start accumulating. Heat an onion on a frying pan OS a saucepan or something similar and after a few minutes drops of onion oil will start accumulating.
How did the iodine solution affect the image of the onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
How did iodine solution affect the image of the onion cells?
there will be change in the color for iodine into blue,black because of the presence of starch in it.
