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What is the pH of a carbolfuchsin direct stain?
The pH of a carbolfuchsin direct stain is typically acidic, around pH 2.5-3.0. This acidic pH helps the stain penetrate bacterial cell walls and bind to the cell structures, making them visible under a microscope.
What are the effects of safranin stain on the cell?
Safranin stain is commonly used in histology to stain acidic cell components such as nuclei, cartilage, and mucin. It appears red or pink in color and can help differentiate these structures from other cellular components when viewed under a microscope.
What is the purpose of the iodine in the second slide of the onion cell?
Iodine is used as a stain to make cell structures more visible under a microscope. In the second slide of the onion cell experiment, iodine helps to stain the nucleus and other organelles within the cells, allowing for better observation and study of the cell components.
What is the purpose of heating the onion root tip cells and the acetocarmine stain?
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.
Which diagram represent a cell organelle that can absorb iodine stain and then be seen with the low power of compound light microscope?
The diagram that represents a cell organelle that can absorb iodine stain and be seen with the low power of a compound light microscope is the nucleus. The nucleus absorbs the iodine stain and becomes visible under the microscope due to its high DNA content, which binds with the stain.
What three types of data are obtained from the gram stain?
The three types of data obtained from a Gram stain are cell morphology (shape and size of the cells), cell arrangement (how cells are grouped together), and Gram reaction (whether cells are Gram-positive or Gram-negative based on their cell wall composition).
Why doesn't the whole cell stain with the cell-wall stain?
The whole cell doesn't stain during a cell wall stain because the dyes that are used are only attracted to the negative cell wall and only sticks it. The inside of the cell shows clear.
What is the pH of a carbolfuchsin direct stain?
The pH of a carbolfuchsin direct stain is typically acidic, around pH 2.5-3.0. This acidic pH helps the stain penetrate bacterial cell walls and bind to the cell structures, making them visible under a microscope.
What are the effects of safranin stain on the cell?
Safranin stain is commonly used in histology to stain acidic cell components such as nuclei, cartilage, and mucin. It appears red or pink in color and can help differentiate these structures from other cellular components when viewed under a microscope.
What is the purpose of using a biological stain when microscopically examining cellular components?
Biological stains are used to enhance the contrast of cellular components under a microscope by highlighting specific structures or molecules. This helps in visualizing and distinguishing different parts of the cell, aiding in identification and analysis of cell structures and functions.
When you added a drop of iodine what effect did it have on the cell?
It stains the cell, making it easier to observe under microscope.
Why are stains such as iodine used to observe cells under the microscope?
Stains like iodine are used to enhance contrast and visibility of cell structures under the microscope. They bind specifically to certain biological molecules within the cell, making them easier to see. This staining process helps researchers identify different cell components and understand their functions more clearly.
What is the purpose of the iodine in the second slide of the onion cell?
Iodine is used as a stain to make cell structures more visible under a microscope. In the second slide of the onion cell experiment, iodine helps to stain the nucleus and other organelles within the cells, allowing for better observation and study of the cell components.
What is the purpose of heating the onion root tip cells and the acetocarmine stain?
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.
Which diagram represent a cell organelle that can absorb iodine stain and then be seen with the low power of compound light microscope?
The diagram that represents a cell organelle that can absorb iodine stain and be seen with the low power of a compound light microscope is the nucleus. The nucleus absorbs the iodine stain and becomes visible under the microscope due to its high DNA content, which binds with the stain.
Which component of Gin's method is the negative stain?
The negative stain in Gin's method is used to visualize the external structures of the bacterial cell by staining the background with a contrasting color, leaving the cells unstained. This technique helps to highlight the morphology and arrangement of bacterial cells.
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.
