 |
|||||||||
The Gram Stain The gram stain is the most frequently used stain in a clinical microbiology laboratory and is usually the first step in identifying bacteria. Based on differences in cell wall components, bacteria are categorized as either gram-positive (stains dark purple) or gram-negative (stains pink). In addition to the gram reaction, the morphology and configuration of the bacteria can be observed, i.e., gram-positive coccus in chains or gram-negative rod. - Click to open the module |
|||||||||
|
|||||||||
