What is the difference between Gram-positive and Gram-negative bacterial cells? Name the technique used for differentiating such bacterial cells.

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What is the difference between Gram-positive and Gram-negative bacterial cells? Name the technique used for differentiating such bacterial cells.


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Salim Ahmed Kawsar

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The Gram-positive bacteria show presence of peptidoglycan layer in the cell wall and Gramnegative bacteria show presence of murein in the cell wall. The technique used for differentiating bacterial cells is Gram staining. [Note: Murein is similar to peptidoglycan in structure and function. It is present in the cell walls of archaebacteria.

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