Microbiology Lab exam 1
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Examples of Gram (-) seen in lab
Example of Gram (+) seen in lab
- Bacillus Cereus. gram (+)
- Streptococcus pyogens (+)
What is the stain technique used to differentiate acid-fast cells?
Primary Stain in Zhiel-Nelsen stain
Carbolfuchsin, a phenolic compound.
Counterstain in Ziehl-Nelsen stain
what type of bacteria is ID'd with Acid-fast stains?
What illnesses does this bacteria cause?
Illnesses: Leprosy and Tb
Selective agent in MSA
What type of Media is MSA?
Selective and differential
What does MSA select for?
What does MSA differentiate for?
pathogenic, vs. non-pathogenic Staphylococcus
Phenol red colors
- acidic = yellow
- Basic = Pink
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