Bacteriology Flashcards
1
Q
What bugs do not gram stain well? Why?
A
- Syphilis (too small)
- Chlamydia (intracellular)
- Mycoplasma (no cell wall)
- Mycobacteria (high lipid in cell walls)
- Legionella (intracellular)
- Rickettsia (intracellular)
2
Q
PAS stain identifies what? What does it bind?
A
Whipple’s dz
Binds glycogen
3
Q
Name 2 acid fast organisms.
A
Mucobacteria
Nocardia
4
Q
What 2 organisms need silver stain?
A
- Fungi
2. Legionella
5
Q
What organisms are obligate aerobes?
A
Nocardia
Pseudomonas
Myco TB
Bacillus
“Nagging pests must breathe air”
6
Q
What organisms are obligate anaerobes?
A
Clostridium
Bacterioides
Actinomyces
“Can’t breathe air”
7
Q
Encapsulated Bacteria?
A
Strep pneumo HiB Neisseria mening E. coli Salmonella Klebsiella Group B Strep
8
Q
Catalase+ organisms?
A
Pseudomonas Listeria Aspergillus Candida E.coli S. aureus Serratia
PLACESS for catalase
9
Q
Urease+ organisms?
A
Cryptococcus H. pylori Proteus Ureaplasma Nocardia Klebsiella S. epidermis S. saprophyticus
10
Q
Sulfur granules?
A
Actinomyces israelii
11
Q
Yellow pigment
A
S. aureus
12
Q
Blue-green pigment
A
Pseudomonas
13
Q
Red pigment
A
Serratia marcescens
14
Q
What organisms produce an IgAase? What does it do?
A
SHiN
Strep pneumo
HiB
Neisseria
Helps to colonize the resp. tract
