The difference between Gram-positive and Gram | vedclass

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(A) The primary difference between Gram-positive and Gram-negative bacteria lies in the structure and composition of their cell wall. Gram-positive ba

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Cell wall

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(A) The primary difference between Gram-positive and Gram-negative bacteria lies in the structure and composition of their cell wall. Gram-positive bacteria possess a thick layer of peptidoglycan in their cell wall,which retains the crystal violet stain. Gram-negative bacteria have a much thinner layer of peptidoglycan and an additional outer membrane containing lipopolysaccharides,which prevents the retention of the crystal violet stain during the Gram staining process.

Column-$I$	Column-$II$
$(a)$ Halophiles	$(i)$ Hot springs
$(b)$ Thermoacidophiles	$(ii)$ Aquatic environment
$(c)$ Methanogens	$(iii)$ Guts of ruminants
$(d)$ Cyanobacteria	$(iv)$ Salty area

The difference between Gram-positive and Gram-negative bacteria is due to the:

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