RANDOM MICRO QUESTIONS

Question 1

Bacteria that grow in 42°C

Answer 1

CAP

Campylobacter
A. baumanii
P. aeruginosa

Question 2

S-shaped, seagull wings, associated with peptic ulcer and is a rapid urease positive

Answer 2

H. pylori

Question 3

Bacteria found in the gallbladder

Answer 3

Salmonella

Question 4

pH indicators that can be used in O/F media

Answer 4

Bromthymol blue: green to yellow
Andrade’s acid fuschin: pale yellow to pink
Phenol red: red to yellow
Bromcresol purple: purple to yellow

Question 5

Bacteria that produce biofilm and is capable of quorum sensing

Answer 5

Chromobacterium violaceum

Question 6

KEY TEST TO DIFFERENTIATE AEROMONAS AND PLEISIOMONAS FROM VIBRIO

Answer 6

Salt tolerance and mannitol fermentation

Question 7

Bacteria associated with Guillan Barré Syndrome

Answer 7

C. jejuni

Question 8

MICROAEROPHILIC, CAPNOPHILIC, motile gram negative rods that are associated with gastritis and diarrhea

Answer 8

C. jejuni

Question 9

Campylobacter spp that can grow in 25°C but is unable to grow in 42°C

Answer 9

C. fetus subsp. fetus

(An animal pathogen)

Resistant to nalidixic acid and susceptible to cephalotin

Question 10

Campylobacter spp that is hippurate hydrolysis positive

Answer 10

C. jejuni

Question 11

Grows wel at 37°C, able to grow at 42°C , an obligate aerobe that has a corn tortilla like odor

Answer 11

P. aeruginosa

Odor is due to the production of 2 aminoacetophenone

Question 12

Able to frow at 42°C, motile, and rod-shaped bacteria, has a green metallic sheen colonies when grown On BAP

Answer 12

P. aeruginosa

Question 13

Causes glander’s dse.

Answer 13

B. mallei

Question 14

Whitemore’s bacillus

Answer 14

B. pseudomallei

Question 15

Second most common cause of infection in cystic fibrosis patients

Answer 15

B. cepacia

Question 16

Oxidase positive, LDC positive, pink colonies on MAC due to oxidation of lactose, yellow on OFPBL

Answer 16

B. cepacia

OFPBL: oxidative fermentative polymyxin B, bacitracin lactose agar

Question 17

Dse. associated to B. cepacia

Answer 17

Heart valve endocarditis
Onion bulb rot in plants
Foot rot in humans