GRAM POSITIVE BACTERIA VS GRAM NEGATIVE BACTERIA

	GRAM POSITIVE BACTERIA	GRAM NEGATIVE BACTERIA
Staining Reaction	The Gram positive bacteria are in dark shades normally, they have dark blue and dark purple shades when they undergo the process of straining.	The process of straining their colors turned to reddish or pinkish in shades.
Uses	It is used to preserve the food items also. Having the cell wall is its major constituent that protects it, helps it interacting with the surroundings, and makes it unique from the other forms of bacteria.	The person might get into the state of depression, weakness, cold, dehydrations and stomach upset. Other than that they also cause diarrhea, pneumonia, infections in bloodstream and urine passing.
Cell wall	The cell wall of the positive gram bacteria is stronger	The cell wall of the negative gram bacteria is weaker
Survival	Gram positive bacteria tend to persist in dry environments better and are often found on places like the skin and in dust.	Gram negative bacteria, on the other hand, are killed more quickly by drying but thrive in aqueous environments. Gram negative bacteria also tend to grow better in the presence of toxic chemicals (such as chlorine)
Composition Of Cell wall	This is a primary characteristic of bacteria whose cell wall is composed of a thick layer of peptidologlycan containing teichoic and lipoteichoic acid complexed to the peptidoglycan.	Cell wall composed of a thin layer of peptidoglycan covered by an outer membrane of lipoprotein and lipopolysaccharide containing endotoxin.
Thickness of Cell wall	In the Gram-positive Bacteria, the cell wall is thick (15-80 nanometers)	In the Gram-negative Bacteria the cell wall is relatively thin (10 nanometers)