Past papers 3

Question 1

Gram-negative, motile rods include genera (PPESYV):

Answer 1

Proteus
Pseudomonas
Escherichia
Salmonella
Yersinia
Vibrio

Question 2

The main pathogenic feature of genus Leptospirosa is:

Answer 2

endothel damage

Question 3

Genus Leptospirosa has how many species?

Answer 3

22

Question 4

Genus Leptospirosa is divided into:

Answer 4

24 serogroups

Question 5

Bacillus anthracis, Klebsiella pneumoniae and Streptococcus pneumoniae are important species of:

Answer 5

encapsulated pathogenic bacteria
Non-motile bacteria

Question 6

Antigens of Klebsiella and Bacillus:

Answer 6

Klebsiella: O + K
Bacillus: O + K

Question 7

Genus Salmonella:

Answer 7

Lactose negative
2 species
over 2000 serotypes

Question 8

The two main toxins of Salmonella are:

Answer 8

enterotoxins and cytotoxins

Question 9

Host adapted salmonella serotypes include:

Answer 9

S. pullorum, S. paratyphi and S. dublin

Question 10

Name the two species of Salmonella:

Answer 10

S. bongori and S. enteritidis

Question 11

Borrelia burgdorferi sensu lato has how many species?

Answer 11

20

Question 12

Name genospecies of B. burgdorferi sensu stricto:

Answer 12

B. garinii, and B. afzelii

Question 13

Pathogenesis of infection of B. burgdorferi sensu lato:

Answer 13

OspA (antigen) (tick) –> OspC (host)

Question 14

Pathogenic E. coli may produce (toxins):

Answer 14

enterotoxins, verotoxins and cytotoxic necrotising factor

Question 15

The main virulence of E. coli are:

Answer 15

fimbrial antigens which consists of LPS

Question 16

Verotoxins VT1 and VT2 inhibit:

Answer 16

proteosynthesis and are responsible for endothelial damage

Question 17

Rhodococci are:

Answer 17

capsulated gram positive
non-motile bacteria
coccal transformation

Question 18

R. equi produces:

Answer 18

exotoxin (equi factor)

Question 19

R. equi can cause:

Answer 19

ulcerative colitis and mesenteric lymphadenitis in foals

Question 20

The main pathogenic feature of Listeria is:

Answer 20

intracellular survival in phagocytes

Question 21

Important virulence factor in Listeria is:

Answer 21

Haemolysin-listeriolysin O

Question 22

Listeria are able to:

Answer 22

penetrate into cells by polymerization of the host cell and by formation of long actin fibres

Question 23

Insects play an important role in transmission of these pathogens (5) (BbFtCbYpRr):

Answer 23

Borrelia burgdorferi
Francisella tularensis
Coxiella burnetti
Yersinia pestis
Rickettsia rickettsi

Question 24

Scotochromogenic mycobacteria produce pigments only in:

Answer 24

dark

Question 25

Chlamydia causes infections such as:

Answer 25

psittacosis and ornitosis

Question 26

Virulence factors of M. tuberculosis include:

Answer 26

cord factor and intracellular surviving

Question 27

Colonies of slow growing mycobacteriaceae are visible after:

Answer 27

more than 7 days after incubation

Question 28

Clostridia produce toxins:

Answer 28

extracellular and sporulating, protoplasmic, lethal and dermonecrotoxic

Question 29

Rickettsia belong to microorganisms which are transmitted by:

Answer 29

vectors - arthropods

Question 30

Rickettsia are not able to synthesize:

Answer 30

macroenergetic substances and therefor use host cells

Question 31

Rickettsia multiply mainly in:

Answer 31

cytoplasm of phagocytic cells

Question 32

EPidemic spotted typhus is transmitted from man to man by

Answer 32

lice

Question 33

Endemic mice typhus is transmitted by:

Answer 33

flea

Question 34

Myobacteria tuberculosis causes:

Answer 34

tuberculosis

Question 35

Botryomycosis is caused by:

Answer 35

Staphylococcus aureus

Question 36

Q fever is causes by

Answer 36

Coxiella burnetii

Question 37

Atrophic rhinitis is caused by:

Answer 37

Pseudomonas aeruginosa and pasteurella multocida

Question 38

Virulence factors of streptococcus include:

Answer 38

Protein M (antiphagocytic and adherence effect) Haemolysins (damage leukocytes) Capsules from hyaluronic acid (antiphagocytic effect)

Question 39

Protein A is virulence factor of:

Answer 39

Staphylococcus

Question 40

Virulence factors of Salmonella are:

Answer 40

Lipid A of cell wall Exotoxins: enterotoxin and cytotoxin

Question 41

Special growth conditions are required for bacteria (5):

Answer 41

Actinobacillus Haemophilius Mycobacterium Brucella Staphylococcus

Question 42

Host non-adapted Salmonella serovars are:

Answer 42

S. enteritidis and S. typhimurium

Question 43

Facultative intracellular bacteria are (SLEBF):

Answer 43

Salmonella Listeria E. coli Brucella Francisella

Question 44

Phosphoenolpyruvate: sugar phosphatetransferase system (PTS) consists of:

Answer 44

3 enzymes and low molecular heat resistant protein (HPr) - HPr and enzyme I are cytoplasmic Enzyme II is integral membrane protein Enzyme III is either cytoplasmic or peripheral protein

Question 45

Phosphoenolpyruvate (PEP) is the:

Answer 45

High energy phosphate donor

Question 46

Phosphoenolpyruvate is important for:

Answer 46

group translocation