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
13
Q
dry
A
Streptococci
14
Q
dry and waxy
A
Diphtheroid
15
Q
green or green metallic
sheen
A
Pseudomonas aeruginosa
16
Q
brick red
A
Serratia marcescens
17
Q
blue
A
Kluyvera
18
Q
purple
A
Chromobacterium violaceum
19
Q
brown-black anaerobe
A
Prevotella melaninogenica
20
Q
yellow
A
S.aureus
21
Q
brown-black anaerobe
A
Prevotella melaninogenica
22
old sock
S. aureus
23
fruity or grapelike
P. aeruginosa
24
putrid
Proteus mirabilis
25
musty basement
Haemophilus spp
26
freshly plowed field
Nocardia spp
27
Vinelike growth in media, puff-ball–like
Streptococci
28
Scumlike growth
Yeast
29
Gas bubbles present
Enterics
30
medusa head
Bacillus anthracis
31
two pigments of Pseudomonas aeruginosa
- pyocyanin
- pyoverdin
