UNIT 3 GROSS COLONY CHARACTERISTICS Flashcards
1
Q
α hemolysis
A
Streptococcus pneumoniae, certain viridans strep
2
Q
β hemolysis
A
- S. pyogenes
- S. agalactiae
- Listeria monocytogenes
3
Q
filamentous
A
Bacillus anthraci
4
Q
rough edges
A
diphtheroid
5
Q
Swarming
A
Proteus spp.
5
Q
Umbilicate
A
S. pneumoniae
6
Q
Umbonate
A
diphtheroids
6
Q
translucent
A
β-hemolytic strep
7
Q
semiopaque (bull’s-eye colony)
A
- Group B strep
- Also most staph and gram-negative rods
8
Q
gray
A
Enterococcus and most gram-negative rods
9
Q
yellow or off-white
A
Micrococcus and Neisseria
10
Q
buff
A
Diphtheroids
10
Q
creamy
A
S. aureus
11
Q
sticky
A
Neisseria
12
Q
brittle
A
Nocardia
