What does the Safranin Stain tell you? Why doesn't a negative stain colorize the cells in the smear? Why can't methylene blue be used for the negative stain technique? (a) Why is the Gram stain technique more valuable than the simple stain technique in a diagnostic laboratory? (b) Under...
Crystal violet (primary stain) Iodine solution/Gram's Iodine (mordant that fixes crystal violet to cell wall) Decolorizer (e.g. ethanol) Safranin (secondary stain) Water (preferably in a squirt bottle) What are the most common extrinsic stains? Extrinsic Stains Dark-colored foods or drinks (...