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What structure of a bacterial cell determines which kind of biological stain it will take up?
Wiki User
∙ 14y ago
The cell wall of gram-negative bacteria is a thin layer sandwiched between an outer cell envelope and an inner cell membrane. The gram-positive cell wall is much thicker, has no cell envelope, and contains additional substances that retain the blue stain.
Wiki User
∙ 14y ago
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What color do bacterial endospores stain in the Schaeffer-Fulton spore stain?
Green
Why are basic stains attracted to the bacteria itself?
The bacterial cell wall has a negative charge. The basic stain has a positive charge. Since they have opposite charges, the bacterial cell wall and the basic stain are attracted to each other; hence the basic stain dyes the bacteria.
What does the gram stain in a cerebrospinal fluid analysis indicate?
The Gram stain is performed on a sediment of the CSF and is positive in at least 60% of cases of bacterial meningitis.
What color are gram negative cells?
Gram positive bacterial stain purple. They do not take up the counter stain.
What is the purpose of using a biological stain when microscopically examining cellular components?
the purpose of using stain is to highlight specific areas or parts of the cell. different cell structures become visible under different stain colors.
When was Biological Stain Commission created?
Biological Stain Commission was created in 1922.
What color do bacterial endospores stain in the Schaeffer-Fulton spore stain?
Green
What is an organic stain?
An organic stain is considered a biological stain using organic dye. Organic dyes used are often modified from the textile industry.
Why are basic stains attracted to the bacteria itself?
The bacterial cell wall has a negative charge. The basic stain has a positive charge. Since they have opposite charges, the bacterial cell wall and the basic stain are attracted to each other; hence the basic stain dyes the bacteria.
What structure does iodine stain?
iodine
What causes a stain to adhere to bacterial cells?
In a gram positive stain it is because the cell's cell wall is made up of peptioglycan
What is the purpose of covering the smear with bibulous paper when performing the endospore stain?
This paper will aid in keeping the stain over the bacterial smear.
Is coffee a true biological stain or just a ompound capable of imparting color?
It is simply a compound capable of imparting color. A biological stain refers to a compound that changes the color of features of a cell such as cell walls or the nucleus of a cell and helps to view them more clearly. A coffee stain does not do that.
What does the gram stain in a cerebrospinal fluid analysis indicate?
The Gram stain is performed on a sediment of the CSF and is positive in at least 60% of cases of bacterial meningitis.
What bacterial staining technique is used when water is used to remove excess stain from the slide?
simple
What is safranin solution in science?
safranin is a biological stain used in histology n cytology
What is the consequence of leaving a stain on the bacterial smear too long over staining?
Leaving a stain on too long generally stains everything; leaving little contrast. Leaving a stain on not long enough doesn't stain enough; leaving little contrast.
