Gram Negetive Bacteria

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Old Questions - Test 3
Leon Schwarze
Test por Leon Schwarze, actualizado hace 10 meses
Leon Schwarze
Creado por Leon Schwarze hace 10 meses
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Resumen del Recurso

Pregunta 1

Pregunta
Choose incorrect combination
Respuesta
  • a) Neisseria gonorrhoeae - oxidase and catalase negative
  • b) Vibrio vulnificus - polysaccharide capsule
  • c) Treponema pallidum - seen by darkfield microscopy
  • d) Acinetobacter baumannii - strictly aerobic
  • e) Bordetella pertussis - coccobacillus

Pregunta 2

Pregunta
Which of the following ferment glucose
Respuesta
  • a) E. Coli
  • b) Salmonella Enteritidis
  • c) Proteus Mirabilis
  • d) a + b
  • e) All of the mentioned

Pregunta 3

Pregunta
Which of the mentioned refer to Helicobacter pylori
Respuesta
  • Mucinase
  • Urease
  • Oxidase positive
  • Polypeptide capsule
  • VacA
  • CagA
  • Catalase positive
  • Exotoxin A

Pregunta 4

Pregunta
Obligatory aerobic, slender, pleomorphic rods, multiply in free living amoeba infects individuals who inhale infectious aerosols” this characteristics most likely indicates:
Respuesta
  • a) Treponema pallidum
  • b) Brucella abortus
  • c) Legionella pneumophila
  • d) Campylobacter jejuni
  • e) Pasteurella multocida

Pregunta 5

Pregunta
3 Clinical Diseases caused by Pseudomonas aeruginosa
Respuesta
  • Bacteremia
  • Endocarditis
  • Tracheobronchitis (Pulm. Inf.)

Pregunta 6

Pregunta
Spirochaetales are an etiological agents of:
Respuesta
  • a) Syphilis
  • b) Borreliosis
  • c) Leptospirosis
  • d) a+b
  • e) All of mentioned

Pregunta 7

Pregunta
“After ingestion of contaminated meat or eggs and passage through the stomach bacteria attaches to the mucosa of small intestine and invade into microfold cells (M cells)” this characteristic most likely indicates:
Respuesta
  • a) Heliobacter pylori
  • b) Salmonella Enteritidis
  • c) Shigella shigae
  • d) Pseudomonas aeruginosa
  • e) Francisella tularensis

Pregunta 8

Pregunta
Choose oxidase positive bacteria
Respuesta
  • a) Pseudomonas aeruginosa
  • b) H. pylori
  • c) C. jejuni
  • d) b+c
  • e) all of the mentioned

Pregunta 9

Pregunta
Choose correct concerning Neisseria menigitidis
Respuesta
  • a) Grows best in a humid atmosphere
  • b) Humans, birds and rodents are it's only natural hosts
  • c) Can survive the intracellular killing in the absence of humoral activity
  • d) a+c
  • e) All of the mentioned are correct

Pregunta 10

Pregunta
The epidemiologi (serologic) classification of the Enterobacteriaceae is based on:
Respuesta
  • a) Somatic O antigen
  • b) K antigen
  • c) H antigen
  • d) a+b
  • e) All of the mentioned

Pregunta 11

Pregunta
Which of the following are strict anaerobic, gram negative, rod shaped bacteria:
Respuesta
  • a) Bacteroides fragilis
  • b) Acinetobacter baumannii
  • c) Fusobacterium nucleatum
  • d) a+c
  • e) all mentioned

Pregunta 12

Pregunta
Which of the following are strict anaerobic, gram negative, rod shaped bacteria:
Respuesta
  • a) Bordetella pertussis
  • b) Acinetobacter baumannii
  • c) Fusobacterium nucleatum
  • d) a+b
  • e) all mentionend

Pregunta 13

Pregunta
Choose FALSE statement
Respuesta
  • a) All Neisseria species are non-capsulated
  • b) Humans are the only host for Neisseria gonorrhoeae
  • c) Neisseria sicca and Neisseria mucosa are commensal
  • d) Keingella kingae resides in the human oropharynx
  • e) a+c are false

Pregunta 14

Pregunta
Choose features of all Enterobacteriaceae representatives:
Respuesta
  • a) All oxidase negative
  • b) Some from endospores
  • c) All are glucose fermenters
  • d) All are lactose fermenters
  • e) a+c

Pregunta 15

Pregunta
Choose false statement:
Respuesta
  • a) Some Neisseria species are non-capsulated
  • b) Humans and rodents are the only host for Neisseria gonorrhoeae
  • c) Neisseria sicca and Neisseria mucosa are commensal
  • d) Keingella kingae resides in the human oropharynx
  • e) a+c are false

Pregunta 16

Pregunta
Choose True Statement
Respuesta
  • a) Members of genus Borrelia and Treponema belong to the order Spirochaetales
  • b) Salmonella attach to the mucosal microfold cells in Peyer's patches
  • c) Campylobacter jejuni produces an abundance of urease
  • d) a+b are true
  • e) all true

Pregunta 17

Pregunta
Choose true statement
Respuesta
  • a) Members of genus Borrelia and Treponema belong to the order Spirochaetales
  • b) Salmonella attach to the mucosal microfold cells in Peyer's patches
  • c) Proteus Mirabilis produces an abundance of urease
  • d) all are true

Pregunta 18

Pregunta
Choose False
Respuesta
  • a) Gram staining is ineffective to distinguish genus
  • b) Pseudomonas aeruginosa is psychrophilic bacterium
  • c) Klebsiella pneumoniae tends to produce polysaccharide capsule
  • d) Bacteroides fragilis and fusobacterium nucleatum are facultative anaerobic bacteria
  • e) Chlamydia growth cycle occurs within susceptible host cells

Pregunta 19

Pregunta
List at least 3 vorulence factors of Helicobacter pylori
Respuesta
  • Urease
  • VacA
  • CagA
  • Mucinase

Pregunta 20

Pregunta
Which of the following are Gram negative bacteria virulence factors
Respuesta
  • a) Endotoxin
  • b) Exotoxin
  • c) Hemolysis
  • d) a+c
  • e) All mentionend

Pregunta 21

Pregunta
Virulence factors of Pseudomonas aeruginosa include:
Respuesta
  • a) Alginate capsule
  • b) Exotoxin
  • c) VacA
  • d) a+b
  • e) all mentionend

Pregunta 22

Pregunta
Virulence factors of Pseudomonas aeruginosa include:
Respuesta
  • a) Allginate capsule
  • b) Exotoxin A
  • c) Elastase
  • d) a+b
  • e) All mentioned

Pregunta 23

Pregunta
“Curved gram negative rods, fermentative, facultative anaerobic, require salt for growth, can multiply freely in water” this characteristic most likely indicates
Respuesta
  • a) Helicobacter pylori
  • b) Vibrio cholera
  • c) Acinetobacter baumannii
  • d) Salmonella Enteritidis
  • e) Borrelia burgdorferi

Pregunta 24

Pregunta
Abbrevation LOS Lipooligosaccharide
Respuesta
  • True
  • False

Pregunta 25

Pregunta
Por B and opa genes are for which bacteria:
Respuesta
  • Neisseria Gonorrhoeae
  • blub

Pregunta 26

Pregunta
Explain abbreviation EHEC [blank_start]Enterohaemoragic Escheria Coli[blank_end] Which disease can be a result of infection with it [blank_start]Bloody Diarrhea, collitis, HUS[blank_end]
Respuesta
  • Enterohaemoragic Escheria Coli
  • Bloody Diarrhea, collitis, HUS

Pregunta 27

Pregunta
Most strict anaerobes are intrinsically resistant to
Respuesta
  • a) amikacin
  • b) ofloxacin
  • d) clindamyacin
  • c) cephradine
  • d) a + b + c

Pregunta 28

Pregunta
Give 3 species of Gram - rods causing endogenous anaerobic infections
Respuesta
  • Bacteriodes fragilis
  • Poshyromonas Cingira
  • B. Ovatus
  • B. Vulgatus
  • E. Coli

Pregunta 29

Pregunta
Bordatella Pertussis
Respuesta
  • a) belongs to Enterobacteriaceae
  • b) causes bacilliary dysentery
  • c) produces exotoxin
  • d) a+b+c
  • e) b+c

Pregunta 30

Pregunta
Which Gram negative rods produce exotoxin
Respuesta
  • Psuedomonas aeruginosa
  • B. Anthracis
  • Shigella (shiga toxin)
  • c. Botulism
  • vibro cholera

Pregunta 31

Pregunta
H. influenza
Respuesta
  • a) can grow o MacConkey Agar
  • b) produces strong exotoxins
  • c) is susceptible to penicillin
  • d) produces polypeptide capsule
  • e) none

Pregunta 32

Pregunta
There are/is antibiotics active to Enterobacteriaceae
Respuesta
  • a) ligomyocin
  • b) coftazidime
  • c) metromdazole
  • d) a+b+c
  • e) a+c

Pregunta 33

Pregunta
An animal can be the source of infection with
Respuesta
  • a) Francisella Tularensis
  • b) Salmonella enteriditis
  • c) Legionella pneumophilia
  • d) a+b
  • e) none of the mentionend

Pregunta 34

Pregunta
The aetiological agent of typhoid fever can be found by culture in the following specimens: [blank_start]Blood[blank_end], [blank_start]Urine[blank_end] and [blank_start]Feces[blank_end]
Respuesta
  • Blood
  • Bone
  • Urine
  • Hair
  • Feces

Pregunta 35

Pregunta
Chronic gastritis and duodenal ulcers can be a result of [blank_start]H. Pylori[blank_end] Infection. It´s virulence factors are: [blank_start]Urease VacA CagA[blank_end]
Respuesta
  • Urease VacA CagA
  • H. Pylori

Pregunta 36

Pregunta
To Gram - obligatory anaerobic rods belong
Respuesta
  • Bacteroides
  • Porphyromonas
  • Prevotella
  • Fusobacterium
  • Leptorichia

Pregunta 37

Pregunta
Choose the potential causative agent of haemolytic uremic syndrome
Respuesta
  • E.Coli O157 H7
  • E Coli producing shiga like toxin
  • Shigella dysenteriae
  • enterohemorrhagic E.coli
  • All mentioned

Pregunta 38

Pregunta
Pasteurella mulocida
Respuesta
  • a) fastidious Gram - coccus
  • b) is fastidious and curved, oxidase positive G -
  • c) causes septic animal bite
  • d) causes tularemia
  • e) b+c

Pregunta 39

Pregunta
In diagnostic of infections caused by pathogenic Neisseriae the following methods is/are used
Respuesta
  • a) serotyping
  • b) culturing on enrichedmedia
  • c) oxidase - test
  • d) a+c
  • e) all mentionend

Pregunta 40

Pregunta
List 2 species of curved oxidase positive entropathogenic Gram - rods
Respuesta
  • E.Coli
  • Campylobacter
  • Helicobacter

Pregunta 41

Pregunta
List 3 infections caused by Escheria Coli
Respuesta
  • gastroenteritis
  • pneumonia
  • Urinary Tract infection

Pregunta 42

Pregunta
N. mengitidis may be the cause of
Respuesta
  • a) hemorrhagic speticemia
  • b) peptic ulcers
  • c) Waterhouse Friedrichsena syndrome
  • d) a+c
  • e) all mentionend
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