Gram-staining characteristics affect antibiotic choice
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Gram-positive: blue/purple
Gram-negative: red/pink
this colorimetric difference has a fine structural correlate
Gram-positive bacteria have a thick layer of peptidoglycan on the very outside
Gram-negative bacteria have a thin layer of peptidoglycan sandwiched between two lipid bilayers
the Gram stain
in many cases, allows for a presumptive diagnosis of a specific microbial etiology
Category: Microbiology Notes
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