Lab 4

Question 1

usually mycobacterium spp. need a long time for their cultivating in vitro?

Answer 1

True

can take many weeks

Question 2

M.tuberculosis belongs to the m. avium complex?

Answer 2

false

Question 3

m. microti can cause bird tuberculosis?

Answer 3

False

Rodents

Question 4

main habitat of Nocardia spp. is in the soil?

Answer 4

True

Question 5

Corynebacterium pseudotuberculosis causes lymphadenitis?

Answer 5

True

Nitrate-negative biotype

Question 6

Rhodococcus equi is an intracellular pathogen?

Answer 6

True

Question 7

Rhodococcus equi causes pneumonia in foals?

Answer 7

True

and abscesses in the lungs

Question 8

mycobacterium avium spp. has cream like colonies on a solid medium?

Answer 8

true

Question 9

mycobacterium are acid- and alcohol - fast bacteria?

Answer 9

true

Question 10

as a result of ziehl-neelsen staining pathogenic mycobacterium are red?

Answer 10

True

Question 11

human leprosy is caused by m.lepraemurium?

Answer 11

False

m. laprae
m. lepraemurium - mouse

Question 12

Dermatophylus congolensis infects mainly sheep and causes purulent mastitis and endocarditis?

Answer 12

False

Exudative dermatitis

Question 13

Most mycobacteria are flagellated?

Answer 13

False

no flagella in any of the spp.

Question 14

Dermatophilus can be found on the skin of infected animals?

Answer 14

True

Question 15

Nocardia asteroides produces carotenoid pigments?

Answer 15

True

yellow, red, pink

Question 16

cattle lumpy jaw is caused by actinomyces bovis?

Answer 16

True

Question 17

Actinobaculum can cause pyelonephritis in pigs?

Answer 17

True

Question 18

Trueperella pyogenes can cause arthritis in pigs?

Answer 18

True 
\+ 
mastitis
metritis 
pneumonia 
navel infections

Question 19

as a result of ziehl-neelsen staining pathogenic mycobacterium are blue?

Answer 19

False

their red

Question 20

Cattle can be infected with mycobacterium bovis only?

Answer 20

False

Question 21

mycobacterium are obligate anaerobes?

Answer 21

False

obligate aerobes

Question 22

Nocardia can be found in the infected host body only?

Answer 22

False

in the soil

Question 23

cattle lumpy jaw is caused by actinomyces viscosus?

Answer 23

False

A. bovis

Question 24

Truperella pyogenes causes exudative dermatitis in sheep?

Answer 24

False

Question 25

Truperella pyogenes causes mastitis in cattle?

Answer 25

True

Question 26

obligate pathogenic mycobacteria can multiply in the host and the environment?

Answer 26

False | infected host only

Question 27

Mycobacterium are spore forming?

Answer 27

False

Question 28

Mycobacterium spp. are ziehl-neelsen positive bacteria?

Answer 28

True

Question 29

Ziehl-neelsen positive bacteria are blue?

Answer 29

False | their red

Question 30

usually mycobacterium spp. need a long time for their culturing in vitro?

Answer 30

True | sometimes many weeks

Question 31

m.tuberculosis belongs to the m.avium complex

Answer 31

False

Question 32

incubation time of m. bovis is 6-12 weeks?

Answer 32

False | 4-8 weeks

Question 33

Nocardia asteroides is a soil bacteria?

Answer 33

True

Question 34

Nocardia asteroides is an obligate aerobic bacterium?

Answer 34

True

Question 35

Pneumonia can be caused by truperella pyogenes?

Answer 35

True

Question 36

Pericarditis in dogs can be caused by actinomyces hordeovulneris?

Answer 36

True

Question 37

Truperella pyogenes can cause metritis?

Answer 37

True

Question 38

Dermatophilus congolensis produces carotenoid pigments?

Answer 38

False | Nocardia produces carotenoid pigments

Question 39

Obligate pathogenic mycobacteria can multiply in the host body only?

Answer 39

True

Question 40

Mycobacterium bovis is gram-positive and ziehl-neelsen-negative?

Answer 40

False | Both positive

Question 41

Animals can be infected by a mycobacterium spore?

Answer 41

False | Non spore forming

Question 42

Mycobacterium tuberculosis forms islands on the surface of the broth?

Answer 42

False m. bovis forms islands m. tuberculosis forms thin film

Question 43

nocardia is a soil microorganism?

Answer 43

True

Question 44

nocardia is an obligate anaerobe?

Answer 44

False | obligate aerobe

Question 45

arthritis of swine can be caused by truperella pyogenes?

Answer 45

True

Question 46

infectious form of the dermatophilus is the zoospore?

Answer 46

True

Question 47

Truperella pyogenes causes mastitis or pneumonia?

Answer 47

True

Question 48

Dermatophilus can produce carotenoid pigments?

Answer 48

False | Nocardia produce the pigments

Question 49

mycobacterium is catalase negative?

Answer 49

True