Differences Between Gram Positive and Gram Negative Bacteria

Differences Between Gram Positive and Gram Negative Bacteria

Differences Between Gram Positive and Gram Negative Bacteria  S.N. Character Gram-Positive Bacteria Gram-Negative Bacteria 1.    Gram Reaction Retain crystal violet dye and stain blue or purple on Gram’s staining. Accept safranin after decolorization and stain pink or red on Gram’s staining. 2.    Cell wall thickness Thick (20-80 nm) Thin (8-10 nm) 3.    Peptidoglycan … Read moreDifferences Between Gram Positive and Gram Negative Bacteria

Gram-positive cell wall

Gram-positive cell wall

Prokaryotic cells almost always are bounded by a fairly rigid and chemically complex structure present between the cell membrane and capsule/slime layer called the cell wall. Peptidoglycan is the main component of the cell wall and is responsible for the shape and strength of the cell. It is a disaccharide and contains two sugar derivatives—N-acetylglucosamine … Read moreGram-positive cell wall