Question

Explain the differences between cell walls that are gram negative and gram positive

Answer 1

Heya...here is your answer.
Differences between cell walls of gram positive and gram negative are as follows:-
■*Gram positive* -
》Gram + bacteria have a thick, multi-layered peptidoglycan layer.
》 Gram + have techoic acids in the cell wall.
》 Gram + do not have a periplasmic space.
》Gram + bacteria have no outer membrane.
》Lipopolysaccharides are low in concentration than in Gram - bacteria.
》 lipid concentration is lower in Gram+.
》Gram + stains as purple in the Gram Stain procedure, even after rinsing and counter-stain.

■*Gram negative*
》 Gram - bacteria have a thin, single layer one.
》Gram - do not have techoic acids in cell wall.
》Gram - have periplasmic space
》 Gram - have a feature of having outer membrane.
》Lipopolysaccharides are in high concentration only in Gram - bacteria.
》Lipid concentration is higher in Gram - than in Gram +.
》Gram - will stain as pink due to the counter-stain, but cannot retain the purple dye well.
Hope it helps.
Have a gud time