This is because the cheek cell is transparent. Since the membrane of the cheek cell is selectively permeable, it allows the methylene blue to enter the cell , therefore makes it blue in color from the inside.
Then we are able to see the cheek cell properly under a microscope...
please note. : we are supposed to add a bit of water and gliserene too .
WATER : to transfer the cheek cells on to the slide AND
GLISERENE: to prevent the cheek cells from drying up.
Methylene blue is necessary for various applications, such as in medical diagnostics, staining biological tissues, and as a medication to treat methemoglobinemia. It is also used as a redox indicator in chemical reactions and as a dye in various industries. In microscopy, methylene blue can help highlight cell structures for better visualization.
When you added methylene blue to the living yeast cell, the methylene blue is actually a dye so you could see the cells, therefore, the yeast cell became blue. It is much the same with hair dye. If you have a bottle of blue hair dye, it will dye your hair blue.
Methylene blue can act on only dead yeast cells because it is able to penetrate the cell membrane easier when the cell is dead, allowing it to enter and stain the cell. In live yeast cells, the cell membrane is intact and acts as a barrier, preventing methylene blue from entering and staining the cell.
because methylene blue turns colourless when it is reduced by hydrogen. during respiration hydrogen is produced and instead of reducing NAD, it reduces methylene blue and turns methylene blue colourless. if methylene blue goes from blue to colourless then this shows that the cell is respiring as it is producing a suffiecient amount of hydrogen to decolourise methylene blue
Methylene blue is used to stain animal cells, such as human cheek cells, to make their nuclei more observable. Also used to staining the blood film and used in cytology. It gives a blue coloration to the human cheek cell.
Methylene blue is necessary for one thing. It is what helps transports cells.
Methylene blue is necessary for various applications, such as in medical diagnostics, staining biological tissues, and as a medication to treat methemoglobinemia. It is also used as a redox indicator in chemical reactions and as a dye in various industries. In microscopy, methylene blue can help highlight cell structures for better visualization.
When you added methylene blue to the living yeast cell, the methylene blue is actually a dye so you could see the cells, therefore, the yeast cell became blue. It is much the same with hair dye. If you have a bottle of blue hair dye, it will dye your hair blue.
Methylene blue can act on only dead yeast cells because it is able to penetrate the cell membrane easier when the cell is dead, allowing it to enter and stain the cell. In live yeast cells, the cell membrane is intact and acts as a barrier, preventing methylene blue from entering and staining the cell.
because methylene blue turns colourless when it is reduced by hydrogen. during respiration hydrogen is produced and instead of reducing NAD, it reduces methylene blue and turns methylene blue colourless. if methylene blue goes from blue to colourless then this shows that the cell is respiring as it is producing a suffiecient amount of hydrogen to decolourise methylene blue
Adding methylene blue to a slide will stain animal cells and make the nuclei more visible.
Methylene blue is a solid, odorless, dark green powder at room temperature. In water this chemical compound turns into a blue solution. When methylene blue is reacted with yeast cells it inhibits the respiration which stops the cells from using hydrogen ions to release energy.
iodine
Methylene blue is used to stain animal cells, such as human cheek cells, to make their nuclei more observable. Also used to staining the blood film and used in cytology. It gives a blue coloration to the human cheek cell.
Staining Elodea and Anabaena cells with methylene blue can be useful in microscopy to enhance contrast and visualize cell structures more clearly. Methylene blue is commonly used as a general stain to highlight cellular components such as nuclei and cytoplasm. This staining technique can aid in identifying cellular organelles and structures during microscopic examination.
Methylene Blue, in this situation, is being used as a microscopy stain. Microscopy stains are used to allow for particular characteristics of cells to be observed in greater detail or to make them easier to see.
If methylene blue is blue, it means that the compound is in its oxidized state (methylene blue) and has accepted electrons. Methylene blue can exist in both oxidized (blue) and reduced (colorless) forms depending on its redox state.