Diagnostic bacteriology

Question 1

Gram positive cocci in clusters:
catalase positive
coagulase positive

Answer 1

staph aureus

Question 2

Gram positive cocci in clusters:
catalase positive
coagulase negative
novobiocin sensitive

Answer 2

staph epidermis

Question 3

Gram positive cocci in clusters:
coagulase negative
novobiocin resistant

Answer 3

staph saprophiticus

Question 4

Gram positive cocci in chains:
catalase negative,
alpha hemolytic
bile-optochin sensitive

Answer 4

strep pneumoniae

Question 5

Gram positive cocci in chains:
catalase negative,
alpha hemolytic
bile-optochin resistant

Answer 5

viridans strep

Question 6

Gram positive cocci in chains:
catalase negative,
betah emolytic
bacitracin sensitive

Answer 6

strep pyogenes

Question 7

Gram positive cocci in chains:
catalase negative,
beta hemolytic
bacitracin resistant

Answer 7

strep agalactiae

Question 8

Gram positive cocci in chains:
catalase negative,
gamma hemolytic

Answer 8

group D strep

Question 9

Gram positive rods, spore-forming:
aerobic
non-motile
box-car-shaped

Answer 9

bacillus anthracis

Question 10

Gram positive rods, spore-forming:
aerobic
motile
reheated fried rice

Answer 10

bac. cereus

Question 11

Gram positive rods, spore-forming:
anerobic
tennis-racket-like

Answer 11

clostridium tetani

Question 12

Gram positive rods, spore-forming:
anerobic
bulging cans

Answer 12

clos. botulinum

Question 13

Gram positive rods, spore-forming:
anerobic
lecithinase
gas-forming

Answer 13

clos. perfringens

Question 14

Gram positive rods, spore-forming:
anerobic
pseudomembranes

Answer 14

close. deficile

Question 15

Gram positive rods, non-spore-forming:
aerobic
non-motile
curved
chinese characters

Answer 15

corynebacterium diphtheriae

Question 16

Gram positive rods, non-spore-forming:
aerobic
curved
tumbling motility

Answer 16

listeria monocytogenes

Question 17

Gram negative diplococci:
encapsulated
ferments maltose and glucose

Answer 17

neisseria meningitidis

Question 18

Gram negative diplococci:
insignificant capsule
ferments glucose only

Answer 18

n. gonorrhea

Question 19

Gram negative rods:
enriched chocolate agar
polyribitol phosphaste
capsule

Answer 19

haemophilus. inf

type B

Question 20

Gram negative rods:
bordet-gengou agar
regam-lowe charcoal (alternative medium)
whopping cough

Answer 20

bordetella pertusis

Question 21

Gram negative rods:
poorly gram staining
silver stain
charcoal yeast agar
air-conditioning

Answer 21

legenioella pneumophilia

Question 22

Gram negative rods, non-lactose-fermenting:
motile
oxidase negative
H2S producer

Answer 22

salmonella spp.

Question 23

Gram negative rods, non-lactose-fermenting:
non-motile
oxidase negative
(-) H2S

Answer 23

shigella spp.

Question 24

Gram negative rods, non-lactose-fermenting:
swarming
oxidase negative
H2S producer
urease positive

Answer 24

proteus mirabilis

Question 25

Gram negative rods, non-lactose-fermenting:
oxidase positive
(-) H2S
obligate aerobe

Answer 25

pseudomonas aeruginosa

Question 26

Gram negative rods:
lactose fermenter
green sheen

Answer 26

e. coli

Question 27

Gram negative rods:
lactose fermenter
urease positive
currant jelly sputum

Answer 27

klebsiella

Question 28

Gram negative rods:
comma-shaped
motile (shooting star)
oxidase positive

Answer 28

v. cholera

Question 29

Gram negative rods:
comma-shaped
microaerophilic
skirrow’s agar

Answer 29

campylobacter jejuni

Question 30

Gram negative rods:
comma-shaped
urease positive

Answer 30

helicobacter pylori