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4 Cards in this Set
- Front
- Back
Crystal violet |
Primary stain Stains both gram neg and pos purple |
|
Grams iodine |
Mordant Forms insoluble chemical complex with crystal violet |
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Grams alcohol |
Removes crystal iodine complex from gram negative—bacteria becomes colorless Shrinks PPG layer in gram pos trapping dye. Gram pos stays purple |
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Safranin |
Counterstain Stains gram neg pink |