Lab 10

Question 1

Morphology of vibrio species are curved rods, with flagella.

Answer 1

True

Question 2

Campylobacter jejuni can cause diarrhoea in humans.

Answer 2

True

Question 3

Lawsonia intracellularis can be cultured on enterocyte cell culture.

Answer 3

True

Question 4

Heliobacter pylori can cause chronic gastritis and ulcer in humans.

Answer 4

True

Question 5

Spirochaetes have characteristic morphology, thin helical filaments.

Answer 5

True

Question 6

Campylobacter species can tolerate 4-6% oxygen.

Answer 6

True (6%)

Question 7

Borrelia burgdorferi can cause Lyme-disease in humans.

Answer 7

True

Question 8

Brachyspira hyodysenteriae is an obligate aerobic bacterium.

Answer 8

False

Question 9

Human syphilis is caused by Treponema pallidum.

Answer 9

True

Question 10

Maintenance host of Leptospira sejroe is cattle.

Answer 10

False (mouse)

Question 11

Vibrio species can be cultured in alcalic environment (pH 8.6).

Answer 11

True

Question 12

Human cholera is caused by Vibrio parahaemolyticus.

Answer 12

False (vibrio cholera)

Question 13

Campylobacter species are aerobic, facultative anaerobic bacteria.

Answer 13

False (Microaerophilic)

Question 14

Campylobacter fetus spp. venerealis can cause abortion in sheep

Answer 14

False (Causes cattle abortion/infertility)

Question 15

Swine proliferative enteropathies are caused by Lawsonia intracellularis

Answer 15

True

Question 16

Heliobacter species are urease-negative bacteria.

Answer 16

False (Urease positive)

Question 17

Spirochaetes are non-motile bacteria

Answer 17

False (periplasmic flagella)

Question 18

Borrelia species can be cultured on chocolate agar

Answer 18

False, (giemsa, fuchin and unstained)

Question 19

Maintenance host of Leptospira ichterohaemorrhagiae is rat.

Answer 19

True

Question 20

Leptospira hardjo can cause abortion in cattles.

Answer 20

True (also in sheep)

Question 21

Causative agent of swine dysentery has 9 serogroups.

Answer 21

True

Question 22

B. anserina causes rabbit syphilis.

Answer 22

False, (by T. paraluiscuniculi)

Question 23

Leptospira species causes leptospirosis in cattle.

Answer 23

True, (in calves)

Question 24

Helicobacter can cause gastritis.

Answer 24

True

Question 25

Treponema pallidum is a zoonotic agent.

Answer 25

True

Question 26

Heliobacter species are bacteria.

Answer 26

True

Question 27

Lyme-disease is caused by Brachyspira.

Answer 27

False, (by Borrelia burgoferi, B. afzelii, B. garinii)

Question 28

Brachyspira are obligate anaerobic bacteria.

Answer 28

True

Question 29

The causative agent of swine dysentery can show haemolysis on blood agar.

Answer 29

True

Question 30

Leptospirosis of dogs is mainly caused by L. grippotyphosa.

Answer 30

False, (leptospirosa interrograns serovar canicola)

Question 31

Leuaditi ́s silver impregnation is an appopiate staining method for Leptospira species.

Answer 31

True

Question 32

Vibrio species are microaerophilic bacteria.

Answer 32

False, Facultative anaerobic

Question 33

For the selective culture of Campylobacter species obligate vancomycin-polymyxin-trimethoprim is used.

Answer 33

True