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bacteriology labs > Lab 4 > Flashcards

Lab 4 Flashcards

1
Q

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

A

True

can take many weeks

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2
Q

M.tuberculosis belongs to the m. avium complex?

A

false

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3
Q

m. microti can cause bird tuberculosis?

A

False

Rodents

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4
Q

main habitat of Nocardia spp. is in the soil?

A

True

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5
Q

Corynebacterium pseudotuberculosis causes lymphadenitis?

A

True

Nitrate-negative biotype

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6
Q

Rhodococcus equi is an intracellular pathogen?

A

True

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7
Q

Rhodococcus equi causes pneumonia in foals?

A

True

and abscesses in the lungs

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8
Q

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

A

true

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9
Q

mycobacterium are acid- and alcohol - fast bacteria?

A

true

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10
Q

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

A

True

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11
Q

human leprosy is caused by m.lepraemurium?

A

False

m. laprae
m. lepraemurium - mouse

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12
Q

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

A

False

Exudative dermatitis

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13
Q

Most mycobacteria are flagellated?

A

False

no flagella in any of the spp.

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14
Q

Dermatophilus can be found on the skin of infected animals?

A

True

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15
Q

Nocardia asteroides produces carotenoid pigments?

A

True

yellow, red, pink

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16
Q

cattle lumpy jaw is caused by actinomyces bovis?

A

True

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17
Q

Actinobaculum can cause pyelonephritis in pigs?

A

True

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18
Q

Trueperella pyogenes can cause arthritis in pigs?

A 
True 
\+ 
mastitis
metritis 
pneumonia 
navel infections
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19
Q

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

A

False

their red

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20
Q

Cattle can be infected with mycobacterium bovis only?

21
Q

mycobacterium are obligate anaerobes?

A

False

obligate aerobes

22
Q

Nocardia can be found in the infected host body only?

A

False

in the soil

23
Q

cattle lumpy jaw is caused by actinomyces viscosus?

A

False

A. bovis

24
Q

Truperella pyogenes causes exudative dermatitis in sheep?

25
Q

Truperella pyogenes causes mastitis in cattle?

26
Q

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

A

False

infected host only

27
Q

Mycobacterium are spore forming?

28
Q

Mycobacterium spp. are ziehl-neelsen positive bacteria?

29
Q

Ziehl-neelsen positive bacteria are blue?

A

False

their red

30
Q

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

A

True

sometimes many weeks

31
Q

m.tuberculosis belongs to the m.avium complex

32
Q

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

A

False

4-8 weeks

33
Q

Nocardia asteroides is a soil bacteria?

34
Q

Nocardia asteroides is an obligate aerobic bacterium?

35
Q

Pneumonia can be caused by truperella pyogenes?

36
Q

Pericarditis in dogs can be caused by actinomyces hordeovulneris?

37
Q

Truperella pyogenes can cause metritis?

38
Q

Dermatophilus congolensis produces carotenoid pigments?

A

False

Nocardia produces carotenoid pigments

39
Q

Obligate pathogenic mycobacteria can multiply in the host body only?

40
Q

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

A

False

Both positive

41
Q

Animals can be infected by a mycobacterium spore?

A

False

Non spore forming

42
Q

Mycobacterium tuberculosis forms islands on the surface of the broth?

A

False

m. bovis forms islands
m. tuberculosis forms thin film

43
Q

nocardia is a soil microorganism?

44
Q

nocardia is an obligate anaerobe?

A

False

obligate aerobe

45
Q

arthritis of swine can be caused by truperella pyogenes?

46
Q

infectious form of the dermatophilus is the zoospore?

47
Q

Truperella pyogenes causes mastitis or pneumonia?

48
Q

Dermatophilus can produce carotenoid pigments?

A

False

Nocardia produce the pigments

49
Q

mycobacterium is catalase negative?

bacteriology labs (4 decks)

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