So you can see different components of the cell. Like the nucleus.
methelyn blue
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.
we stain onion and cheek cells for the following reasons: To prevent the cells from drying quickly To preserve them To disinfect them To make the organelles clearly visible By doing so you will get a clear picture on the microscope and dear reader also remember that you should always keep the cove slid carefully to avoid bubbles in the mount. Hope this piece of information has helped you. All the best
safranine stain is used to stain onion cells
methane blue
Cheek cells are only found in animals, whereas onion cells are found in platns, particularly onion cells. Cheek cells, being animal cells, do not contain a cell wall as onion cells do becasue cell walls are found only in plant cells for structure and rigidness. Onion cells, unlike most plant cells, do not have chlorplasts becasue it does not need sunlight for photosynthesis as other plants do. Being grown underground, it receives nutrients directly from the soil, so chloraplasts are not evident. This is also why onions are never green, since chloroplasts contain chlorpohyll, a pigment which gives plants its green color. Basically, cheek cells are found in animals, and onion cells are found in plants.
Heating the onion root tip cells softens the cell walls and allows the acetocarmine stain to penetrate the cells. The stain then binds to the DNA in the cells, making the chromosomes visible under a microscope for easier observation and analysis in cell division studies.
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.
No, bromthymol blue is typically used as a pH indicator, not a stain for cells. To stain cheek cells for microscopy, dyes like methylene blue or eosin are commonly used as they specifically bind to cellular components and enhance contrast for better visualization.
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.
When staining a cheek cell with methylene blue, you can observe the cell's nucleus as a distinct blue color. The stain highlights the nucleus due to its affinity to bind with DNA. The rest of the cell may appear pale blue or colorless in comparison.
Acetocarmine is a DNA specific stain like feulgen stain, so the super coiled chromosomes during different stages of mitosis present in the Onion root tip cells can be visualized perfectly by treating with this stain.