Gram-positive and gram-negative bacteria are differentiated based on the structural differences in the cell wall. Gram-negative bacteria consist of an outer membrane surrounding the thin peptidoglycan layer. Whereas, the gram-positive bacteria lack outer membrane and they have a thick peptidoglycan layer surrounding the plasma membrane.

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Chapter 22.3, Problem 2MI

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Gram-positive and gram-negative bacteria are differentiated based on the structural differences in the cell wall. Gram-negative bacteria consist of an outer membrane surrounding the thin peptidoglycan layer. Whereas, the gram-positive bacteria lack outer membrane and they have a thick peptidoglycan layer surrounding the plasma membrane.

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