Past papers 3 Flashcards

1
Q

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

A

Proteus
Pseudomonas
Escherichia
Salmonella
Yersinia
Vibrio

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2
Q

The main pathogenic feature of genus Leptospirosa is:

A

endothel damage

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3
Q

Genus Leptospirosa has how many species?

A

22

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4
Q

Genus Leptospirosa is divided into:

A

24 serogroups

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5
Q

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

A

encapsulated pathogenic bacteria
Non-motile bacteria

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6
Q

Antigens of Klebsiella and Bacillus:

A

Klebsiella: O + K
Bacillus: O + K

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7
Q

Genus Salmonella:

A

Lactose negative
2 species
over 2000 serotypes

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8
Q

The two main toxins of Salmonella are:

A

enterotoxins and cytotoxins

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9
Q

Host adapted salmonella serotypes include:

A

S. pullorum, S. paratyphi and S. dublin

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10
Q

Name the two species of Salmonella:

A

S. bongori and S. enteritidis

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11
Q

Borrelia burgdorferi sensu lato has how many species?

A

20

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12
Q

Name genospecies of B. burgdorferi sensu stricto:

A

B. garinii, and B. afzelii

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13
Q

Pathogenesis of infection of B. burgdorferi sensu lato:

A

OspA (antigen) (tick) –> OspC (host)

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14
Q

Pathogenic E. coli may produce (toxins):

A

enterotoxins, verotoxins and cytotoxic necrotising factor

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15
Q

The main virulence of E. coli are:

A

fimbrial antigens which consists of LPS

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16
Q

Verotoxins VT1 and VT2 inhibit:

A

proteosynthesis and are responsible for endothelial damage

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17
Q

Rhodococci are:

A

capsulated gram positive
non-motile bacteria
coccal transformation

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18
Q

R. equi produces:

A

exotoxin (equi factor)

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19
Q

R. equi can cause:

A

ulcerative colitis and mesenteric lymphadenitis in foals

20
Q

The main pathogenic feature of Listeria is:

A

intracellular survival in phagocytes

21
Q

Important virulence factor in Listeria is:

A

Haemolysin-listeriolysin O

22
Q

Listeria are able to:

A

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

23
Q

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

A

Borrelia burgdorferi
Francisella tularensis
Coxiella burnetti
Yersinia pestis
Rickettsia rickettsi

24
Q

Scotochromogenic mycobacteria produce pigments only in:

A

dark

25
Q

Chlamydia causes infections such as:

A

psittacosis and ornitosis

26
Q

Virulence factors of M. tuberculosis include:

A

cord factor and intracellular surviving

27
Q

Colonies of slow growing mycobacteriaceae are visible after:

A

more than 7 days after incubation

28
Q

Clostridia produce toxins:

A

extracellular and sporulating, protoplasmic, lethal and dermonecrotoxic

29
Q

Rickettsia belong to microorganisms which are transmitted by:

A

vectors - arthropods

30
Q

Rickettsia are not able to synthesize:

A

macroenergetic substances and therefor use host cells

31
Q

Rickettsia multiply mainly in:

A

cytoplasm of phagocytic cells

32
Q

EPidemic spotted typhus is transmitted from man to man by

A

lice

33
Q

Endemic mice typhus is transmitted by:

A

flea

34
Q

Myobacteria tuberculosis causes:

A

tuberculosis

35
Q

Botryomycosis is caused by:

A

Staphylococcus aureus

36
Q

Q fever is causes by

A

Coxiella burnetii

37
Q

Atrophic rhinitis is caused by:

A

Pseudomonas aeruginosa and pasteurella multocida

38
Q

Virulence factors of streptococcus include:

A

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

39
Q

Protein A is virulence factor of:

A

Staphylococcus

40
Q

Virulence factors of Salmonella are:

A

Lipid A of cell wall
Exotoxins: enterotoxin and cytotoxin

41
Q

Special growth conditions are required for bacteria (5):

A

Actinobacillus
Haemophilius
Mycobacterium
Brucella
Staphylococcus

42
Q

Host non-adapted Salmonella serovars are:

A

S. enteritidis and S. typhimurium

43
Q

Facultative intracellular bacteria are (SLEBF):

A

Salmonella
Listeria
E. coli
Brucella
Francisella

44
Q

Phosphoenolpyruvate: sugar phosphatetransferase system (PTS) consists of:

A

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

45
Q

Phosphoenolpyruvate (PEP) is the:

A

High energy phosphate donor

46
Q

Phosphoenolpyruvate is important for:

A

group translocation