what do u mean by gran positive cell and gran negative cell?
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Gram positive bacteria have a very thick cell wall made of a protein called peptidoglycan . These bacteria retain the crystal violet dye ( one of the 2 main chemicals used for gram staining). Whereas, gram negative bacteria have a very thin peptidoglycan layer that is sandwiched between an inner cell membrane and a bacterial outer membrane.
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Gram positive bacteria have a very thick cell wall made of a protein called peptidoglycan . These bacteria retain the crystal violet dye ( one of the 2 main chemicals used for gram staining). Whereas, gram negative bacteria have a very thin peptidoglycan layer that is sandwiched between an inner cell membrane and a bacterial outer membrane.
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