Aerobic Gram Positive Bacilli

Question 1

colonial morphology of Bacillus anthracis in BAP

Answer 1

Medusa head

Question 2

reaction of Bacillus anthracis in Egg yolk agar

Answer 2

positive

*positive for lecithinase

Question 3

growth factor of Bacillus anthracis

Answer 3

Thiamine (B1)

Question 4

cutaneous anthrax

Answer 4

black eschar

Question 5

pulmonary anthrax

Answer 5

woolsorter’s disease

Question 6

colonial morphology of Bacillus cereus in BAP

Answer 6

frosted glass

Question 7

best specimen for B. cereus

Answer 7

suspected food

Question 8

causes eye infection in Heroine addicts

Answer 8

Bacillus subtilis

Question 9

exhibits blister colonies in BAP

Answer 9

Bacillus pumilis

Question 10

characterized by parasporal crystals in pesticides

Answer 10

Bacillus thuringiensis

Question 11

spore stain

Answer 11

malachite green

Question 12

plating of Bacillus

Answer 12

heat/alcohol shock technique before plating

Question 13

polymixin lysozyme EDTA thallous acetate (PLET)

Answer 13

media for Bacillus (heavy contamination)

Question 14

bicarbonate agar

Answer 14

capsule of Bacillus anthracis

Question 15

result of Bacillus anthracis in gelatin agar

Answer 15

inverted pine tree

Question 16

thermostable anthrax

Answer 16

ascoli test

Question 17

catalase reaction of Bacillus

Answer 17

catalase positive

Question 18

club shaped bacteria

Answer 18

Corynebacterium

Question 19

contributes to better growth of Corynebacterium

Answer 19

lipids

Question 20

responsible for pseudomembranous formation in respiratory tract

Answer 20

Corynebacterium diphteriae

Question 21

mode of action of C. diphteriae

Answer 21

inhibits protein synthesis

Question 22

cutaneous diphtheriae

Answer 22

velat sore/ barcoo rot

Question 23

C. diphteria group

Answer 23

C. diphteria
C. ulcerans
C. pseudotuberculosis

Question 24

culture media for C. diphteriae

Answer 24

Tinsdale medium

Cysteine Tellurite agar

Question 25

inhibitor of diphteria toxin

Answer 25

iron

Question 26

isolated in wound infections of AIDS patients

Answer 26

C. pseudodiphteriticum

Question 27

cause of diphteroid prosthetic valve

Answer 27

C. jeikeium

Question 28

catalase reaction of Corynebacterium

Answer 28

catalase negative

Question 29

exhibits tumbling motility

Answer 29

Listeria monocytogenes

Question 30

lowest temperature where Listeria is able to grow

Answer 30

4C

Question 31

most important defense mechanisms against Listeria

Answer 31

macrophages and Tcells

Question 32

consequence of Listeriosis in pregnant women in their 3rd trimester

Answer 32

spontaneous abortion and still birth

Question 33

result of Listeria in SIM agar

Answer 33

umbrella-shaped growth/ inverted christmas tree appearance

Question 34

cold enrichment technique

Answer 34

4C especially to placental specimen

Question 35

cause of red disease

Answer 35

Erysipelothrix rhusiopathiae

Question 36

result of E. rhusiopathiae in gelatin agar

Answer 36

Test brush appearance

Question 37

best specimen for E. rhusiopathiae

Answer 37

tissue biopsy | aspirates from skin lesions

Question 38

partially acid fast aerobic actinomycetes

Answer 38

Nocardia

Question 39

intracellular parasites that have tropism to neuronal tissue

Answer 39

Nocardia asteroides complex: N. asteroides and N. brasiliensis

Question 40

structure containing sulfur granules

Answer 40

actinomycetoma

Question 41

colonial morphology of N. asteroides

Answer 41

Bread crumbs looking colonies | chalky white, orange tan

Question 42

colonial morphology of Rhodococcus equi

Answer 42

pale pink/yellow coral -like slimy colonies

Question 43

characterized by rhizoid edges with white/orange pigment

Answer 43

Tsukamurella

Question 44

characterized by black opaque dot colonies

Answer 44

Arcanobacterium

Question 45

characterized by large medusa head with rhizoid growth on yeast nutrient agar

Answer 45

Kuthria

Question 46

characterized by molar tooth appearance

Answer 46

Actinomadura

Question 47

causative agent of Whipple's disease in middle aged men

Answer 47

Tropheryma whippeli