Introduction to Microbiology

Question 1

Monotrichous –

Answer 1

ex: vibrio cholera

Question 2

Peritrichous –

Answer 2

ex: E.coli (UTI)

Question 3

Lopotichous –

Answer 3

ex: helicobacter (stomach, gastric ulcer)

- Produces urease and musinase

Question 4

Amphitrichous –

Answer 4

ex: rhodosprillum rubrun

Question 5

90% capsulated organisms cause ?

Answer 5

Meningitis, because they escape phagocytosis.

Question 6

1. Obligate aerobes –
2. Facultative Anaerobes –
3. Microaerophilic –
4. Obligate anaerobes –

Answer 6

ex: Mycobacterium
ex: most bacteria
ex: Campylobacter
ex: Clostridium

Question 7

Tumbling Motility, which organism?

Answer 7

Listeria Monocytogenes

• 3rd most common cause of meningitis in neonates
• Peritrichous

Question 8

Anthrax, name of capsule?

Answer 8

D- glutamate

Question 9

Thick, abundant, slime layer, pneumonia symptoms. Slime layer (glycocalyx) forms biofilm. “Cheese String”. Which organism?

Answer 9

Klebsilla pneumonia

Question 10

Penicillin inhibits the components cell wall. Name them?

Answer 10

Transglycosylases, transpeptidases, carboxypeptidases.

Question 11

teichoic acid in gram + or - ?

Answer 11

ONLY in gram + cell wall.

Question 12

Cornybacteria diphtheria inclusions are called? Which color?

Answer 12

Volutin granules (purple)