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Difference between gram positive and gram negative stain.[in points] |
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Answer» Characteristics Gram Positive Gram Negative 1. Gram Reaction Retain crystal violet DYE and stain blue or purple.
Gram-Positive Accept safranin and stain pink or red Gram-Negative 2. Cell Wall STRUCTURE Structure of Gram Positive cell wall : gram-positive-cell-wall Structure of Gram Negative cell wall : gram-negative-cell-wall 3. Cell Wall Thickness Thick (20-80 nm) Thin (8-10 nm) 4. Chemical Composition of Cell Wall Peptidoglycan, Teichoic acid Lipotechoic acid Lipopolysaccharide, Lipoproteins and Peptidoglycans 5. Peptidoglycan LAYER Thick (MULTILAYERED) Thin (Single LAYERED) 6. Teichoic Acid in Cell Wall Present Absent |
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