Lab 4

Question 1

Mycobacterium spp. are Ziehl-Neelsen positive bacteria

Answer 1

True

Question 2

Ziehl-Neelsen positive bacteria are blue

Answer 2

False

Question 3

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

Answer 3

Yes

Question 4

Mycobacterium tuberculosis belong to the M. avium complex

Answer 4

False

Question 5

Mycobacterium microti can cause the bird tuberculosis

Answer 5

False

Question 6

The main habitat of nocardia spp. is the soil

Answer 6

True

Question 7

Dermatophylus congolensis infects mainly sheep and causes purulent mastitis and endocarditis

Answer 7

False

Question 8

Corynebacterium pseudotuberculosis cause lymphadenitis

Answer 8

True

Question 9

Rhodococcus equi is an intracellular pathogen

Answer 9

True

Question 10

Rhodococcus equi cause pneumonia in foals

Answer 10

True

Question 11

Mycobacterium avium ssp. Avium has cream-like colonies on solid medium

Answer 11

True

Question 12

Mycobacterium are acid – and alcohol-fast bacteria

Answer 12

True

Question 13

As a result of Ziehl-Neelsen staining, pathogenic mycobacterium are red

Answer 13

True

Question 14

Human leprosy is caused by M. lepraemurium

Answer 14

False

by M. laprae

Question 15

Mainly of mycobacteria are flagellated

Answer 15

False

No flagella

Question 16

Dermatophilus can be found on the skin of infected animals

Answer 16

True

Question 17

Nocardia asteroides produces carotenoid pigments

Answer 17

True

Question 18

Cattle lumpy jaw is caused by Actinomyces bovis

Answer 18

True

Question 19

Actinobaculum suis can cause pyelonephritis in pigs

Answer 19

True

Question 20

Trueperella pyogenes can cause arthritis in cattle

Answer 20

True

Question 21

As a result of Ziehl-Neelsen staining, pathogenic mycobacterium are blue

Answer 21

False

Red

Question 22

Cattle can be infected by Mycobacterium bovis only

Answer 22

False

Also other mycobacteria ssp.

Question 23

Mycobacteria are obligate anaerobic bacteria

Answer 23

False

Obligate aerobic

Question 24

Nocardia can be found in the infected host body only

Answer 24

False

Question 25

Cattle lumpy jaw is caused by Actinomyces viscosus

Answer 25

False *By Actinomyces bovis*

Question 26

Trueperella pyogenes causes exsudative dermatitis in sheep

Answer 26

False

Question 27

Trueperalle pyogenes can cause mastitis in cattle

Answer 27

True

Question 28

Obligate pathogenic mycobacteria can multiply in the host body and the environment

Answer 28

False ## Footnote *Only in infected host*

Question 29

Mycobacterium can form spore

Answer 29

False

Question 30

Incubation time of mycobacterium bovis is 6-12 weeks

Answer 30

False ## Footnote *4-8 weeks*

Question 31

Nocardia asteroides is a soil bacterium

Answer 31

True

Question 32

Nocardia asteroides is a soil bacterium

Answer 32

True

Question 33

Nocardia asteroides is an obligate aerobic bacterium

Answer 33

True

Question 34

Pneumonia can be caused by Trueperella pyogenes

Answer 34

True

Question 35

Pericarditis of dogs can be caused by Actinomyces hordeovulneris

Answer 35

True

Question 36

Trueperella pyogenes can cause metritis

Answer 36

True

Question 37

Dermatophilus congolensis produces carotenoid pigments

Answer 37

False ## Footnote *Nocardia is producing carotenoid pigments*

Question 38

Obligate pathogenic mycobacteria can multiply in the host body only

Answer 38

True

Question 39

Mycobacterium bovis is a Gram-positive and Ziehl-Neelsen-negative

Answer 39

False ## Footnote *Both are positive*

Question 40

Animals can be infected by mycobacterium spore

Answer 40

False ## Footnote *non-spore forming bacterium*

Question 41

Mycobacterium tuberculosis forms islands on the surface of broth

Answer 41

False M. bovis forms islands, M. tuberculosis forms thin film

Question 42

Nocardia is a soil microorganism

Answer 42

True

Question 43

Nocardia asteroides is an obligate anaerobic bacterium

Answer 43

False *Obligate aerobic*

Question 44

Arthritis of swine can be caused by Trueperella pyogenes

Answer 44

True

Question 45

Infectious form of Dermatophilus is the zoospore

Answer 45

True

Question 46

Trueperella pyogenes causes mastitis or pneumonia

Answer 46

True

Question 47

Dermatophilus can produce carotenoid pigments

Answer 47

False ## Footnote *Nocardia produce carotenoid pigments*

Question 48

Nocardia produces carotenoid pigments

Answer 48

True

Question 49

Mycobacterium is catalase negative

Answer 49

True

Question 50

Mycobacterium spp are Ziehl-Neelsen negative bacteria

Answer 50

False

Question 51

Ziehl-Neelsen positive bacteria are red

Answer 51

True

Question 52

Mycobacterium spp. never can produce pigments, they are transparent on solid agar

Answer 52

False

Question 53

Mycobacterium avium subsp. hominissuis belong to the M. tuberculosis complex

Answer 53

False

Question 54

Mycobacterium avium subsp. avium can cause the cattle's paratuberculosis

Answer 54

False

Question 55

The main habitat of actinomyces spp. is the mucus membranes

Answer 55

True

Question 56

Dermatophylus congolensis infects mainly sheep and causes exudative dermatitis

Answer 56

True

Question 57

Corynebacterium is a gram-negative coccoid bacterium with a capsule

Answer 57

False

Question 58

Rhodococcus equi can live in the soil around horses

Answer 58

True

Question 59

Renibacterium salmoninarum is a fish pathogen bacteria

Answer 59

True