what is difference in gram +ve bacteria & gram -ve bacteria ?
Answers
Explanation:
Bacteria are subdivided into two broad groups based on their ability to take up crystal violet dye during Gram staining. ... Gram-positive bacteria have cell walls made up of high amounts of peptidoglycan, a polysaccharide with peptide cross-links, which stains dark purple in the presence of crystal violet.
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Answer:
Gram positive bacteria have a thick peptidoglycan layer and no outer lipid membrane. Gram positive bacteria (with a thicker peptidoglycan layer) retain crystal violet stain during the decolorization process, while Gram negative bacteria have a thin peptidoglycan layer and have an outer lipid membrane. Gram negative bacteria stain red, which is attributed to a thinner peptidoglycan wall, which does not retain the crystal violet during the decoloring process.