what are gram positive and gram negative bacteria?
Class 11 biology chapter 8 cell the basic unit of life
- Riya
- 27 सितम्बर
- 7 उत्तर
7 उत्तर
7 उत्तर
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The Gram Stain Kit is intended for the demonstration and differentiation of Gram-positive and Gram-negative bacteria.
Gram Positive Bacteria: Blue
Gram Negative Bacteria: Red
Other Tissue: Yellow
Nuclei: Red
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gram positive are those bacteria which remain coloured blue or purple gram staining even after washing with alcohol. gram negative are those bacteria that do not retain the stain when washed with alcohol and murein content is 10 -20 %and teichoic acid is absent In cell wall.0Modal content
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1. Gram-positive bacteria have multilayered cell walls while gram-negative bacteria have single layered walls.
2. Gram-positive bacteria gives purple color in a crystal violet dye while gram-negative bacteria don't react with crystal violet dye and also go reverse thus giving pinkish colored stain.
3. Gram-negative bacteria are penicillin resistant whereas gram-positive bacteria responds to penicillin treatment.
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gram positive bacteria are those which have rough cell wall and get coloured after gram staining and remain coloured although washing with alcohol or ethanol while cell wall of gram negative bacteria is smooth and gram staining can be removed by simply washing6Modal content
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What is that which makes gram positive bacteria coloured? which colour is it? @shrutigoel2Modal content
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Gram Positive Bacteria is The bacteria remain coloured with Gram staining even after washing with alcohol or acetone...
and Gram Negative Bacteria is The bacteria do not retain the stain when washed with alcohol or acetone..1Modal content
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