McCurnins ch 15 Flashcards
This media is used for the primary isolation of organisms and for subculture of organisms.
Blood agar plate
When this biochemical test is positive, a red color forms within seconds of the addition of the Kovac reagent.
Indole test media
Used for direct isolation of Salmonella spp. from feces.
Hektoen enteric agar
Media used to enrich samples for the detection of Salmonella spp.
Selenite or tetrathionate broth
The results of this test is determined by observing for a purple or port-wine color in the slant and a purple color in the butt.
Lysine iron agar slant
These plates provide a rich media for the culture of anaerobic organisms.
Brucella blood agar plate
Primarily used to differentiate species of Staphylococcus based on fermentation.
Salt mannitol agar
For determining whether an organism has and is able to use flagella.
Motility media
Primarily isolation medium for selection of Gram-negative organisms.
MacConkey agar plate
A tube medium used to determine whether an organism produces urease.
Christensen urea agar slant
When this biochemical test is positive, the media turns blue, whereas a negative reaction leaves the media green.
Citrate test media
For determining the ability of organisms to utilize glucose, sucrose, and lactose, and to produce hydrogen sulfide.
Triple sugar iron agar slant
Media that detects and discriminates between two organisms based on the results of a biochemical reactions?
differential
The antimicrobial ____ test is used to determine whether an antimicrobial agent will kill or inhibit growth of a particular organism
susceptibility
A stain that distinguishes bacteria that have mycolic acid incorporated in their cells walls?
acidfast
Culture medium used to enhance the growth of specific bacteria?
enrichment
Antibodies that recognize a single antigen?
monoclonal
Biochemical test used to differentiate Staphyloccocus spp from streptococcus spp?
catalase
DNA that is evolutionarily very similar among bacterial species but is usually different enough to identify a specific species?
conserved gene
Culture medium that reduces the growth of unwanted bacteria to allow the growth of other bacteria?
selective
the lowest concentration of antimicrobial required to slow bacterial growth?
MIC
Stain used to differentiate bacteria based on their cell wall?
gram
Another name for the Kirby-Bauer susceptibility test?
disk diffusion
Medium that maintains bacteria in original concentrations without encouraging growth or causing death of the bacteria?
transport
