Gram-Positive Coccus Slide, w.m, Gram Stain

bacteria have cell walls made up of polysaccharides that give them strength and rigidity this is important since bacteria often experience variations in osmotic pressure due to the different solutions they encounter and it is their cell walls which prevent them from shrinking or swelling as a reminder as Moses is the process by which solvent molecules pass through a semipermeable membrane from a less concentrated solution to a more concentrated one equalizing the concentration on either side of the membrane nearly all bacterial cell walls have a peptide polysaccharide layer called peptidoglycan also known as moraine peptidoglycan is a polymer made up of sugars and amino acids which forms a kind of mesh bacteria can be classified based on their reaction to the Gram stain which identifies them as gram positive or gram negative based on the chemical and physical properties of their cell wa