Microbiology

Question 1

Disease caused by infectious proteinaceous agents that is characterized with the appearance of vacuolated neurons w/ loss of function and the lack of an immune response or inflammation

Answer 1

Spongiform Encephalopathies

Question 2

Human prion disease characterized with cerebral like symptoms

Answer 2

Creutzfeldt-Jakob disease

Question 3

Human prion disease characterized with cerebellar like symptoms and infected through canibalism

Answer 3

Kuru

Question 4

Only flagellated vertebrate cell

Answer 4

Sperm cell

Question 5

Smallest bacteria

Answer 5

Mycoplasma sp

Question 6

Largest Bacteria

Answer 6

Thiomargarita namibiensis

Question 7

Largest Medically important bacteria

Answer 7

Borrelia Burgdorferi

Question 8

Lyme disease

Answer 8

Borrelia Burgdorferi

Question 9

All bacteria have cell wall composed of peptidoglycan except

Answer 9

Mycoplasma (sterols)

Question 10

All gram positive bacteria have NO endotoxin EXCEPT

Answer 10

Listeria Monocytogenes

Question 11

Gram Stain:
         Primary stain:
         Mordant:
         Decolorizer:
         Counterstain:

Answer 11

Primary stain: Crystal Violet
Mordant: Gram’s Iodine
Decolorizer: Acetone
Counterstain: Safranin

Question 12

Bacteria not seen in gram stain

Answer 12

These Rascals May Microscopically Lack Color
Treponema
Rickettsia
Mycobacteria
Mycoplasma
Legionella
Chlamydia

Question 13

Treponema

Answer 13

Dark field Microscopy

Can’t be cultured

Question 14

Rickettsia

Answer 14

Tissue/Giemsa stain

Question 15

Mycobacteria

Answer 15

Acid Fast

Question 16

Mycoplasma

Answer 16

Serology

Question 17

Legionella

Answer 17

Silver stain

Question 18

Chlamydia

Answer 18

Tissue/Giemsa stain

Inclusion bodies

Question 19

All bacterial capsules are composed of polysaccharide except

Answer 19

Bacillus anthracis

polypeptide of D-glutamate

Question 20

Use fermentation but can tolerate low amounts of O2 because they have Superoxide Dismutase

Answer 20

Microaerophiles

Question 21

Obligate Aerobes

Answer 21

Nosy and Nagging Pests Must Breathe Lots of oxygen
Nocardia
Neisseria
Pseudomonas*
Mycobacteria*
Bordetella/Brucella/B. cereus
Legionella

Question 22

Obligate Anaerobes

Answer 22

ABC of Anaerobes
Actinomyces
Bacteroides
Clostridium

Question 23

Normal flora of the skin

Answer 23

Staph Epidermidis

Question 24

Normal flora of the nose

Answer 24

Staph Aureus

Question 25

Normal flora of the mouth

Answer 25

Strep viridans

Question 26

Normal flora of the dental plaque

Answer 26

Strep mutans

Question 27

Normal flora of the colon

Answer 27

#1 Bacteroides #2 E.coli

Question 28

Normal flora of the vagina

Answer 28

Lactobacillus vaginalis, E.coli, Streptococcus agalactiae

Question 29

Salmonella carriage in ___________ | DOC?

Answer 29

Gallbladder | Ampicillin (capable of enterohepatic recycling)

Question 30

Bacteria with IgA protease

Answer 30

``` SHiNe My Gong Strep pneumoniae Haemophilus influenzae Neisseria Meningitidis Neisseria Gonorrhoeae ```

Question 31

M protein as antiphagocytic

Answer 31

Strep pyogenes

Question 32

Protein A prevents complement activation

Answer 32

Stap aureus

Question 33

Exotoxins are destroyed rapidly at 60C except for

Answer 33

Staphylococcal enterotoxin