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Gram Negetive Bacteria

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Old Questions - Test 3
Leon Schwarze
Quiz by Leon Schwarze, updated 4 months ago
Leon Schwarze
Created by Leon Schwarze 5 months ago
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Resource summary

Question 1

Question
Choose incorrect combination
Answer
  • 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

Question 2

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

Question 3

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

Question 4

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

Question 5

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

Question 6

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

Question 7

Question
“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:
Answer
  • a) Heliobacter pylori
  • b) Salmonella Enteritidis
  • c) Shigella shigae
  • d) Pseudomonas aeruginosa
  • e) Francisella tularensis

Question 8

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

Question 9

Question
Choose correct concerning Neisseria menigitidis
Answer
  • 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

Question 10

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

Question 11

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

Question 12

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

Question 13

Question
Choose FALSE statement
Answer
  • 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

Question 14

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

Question 15

Question
Choose false statement:
Answer
  • 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

Question 16

Question
Choose True Statement
Answer
  • 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

Question 17

Question
Choose true statement
Answer
  • 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

Question 18

Question
Choose False
Answer
  • 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

Question 19

Question
List at least 3 vorulence factors of Helicobacter pylori
Answer
  • Urease
  • VacA
  • CagA
  • Mucinase

Question 20

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

Question 21

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

Question 22

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

Question 23

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

Question 24

Question
Abbrevation LOS Lipooligosaccharide
Answer
  • True
  • False

Question 25

Question
Por B and opa genes are for which bacteria:
Answer
  • Neisseria Gonorrhoeae
  • blub

Question 26

Question
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]
Answer
  • Enterohaemoragic Escheria Coli
  • Bloody Diarrhea, collitis, HUS

Question 27

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

Question 28

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

Question 29

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

Question 30

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

Question 31

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

Question 32

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

Question 33

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

Question 34

Question
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]
Answer
  • Blood
  • Bone
  • Urine
  • Hair
  • Feces

Question 35

Question
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]
Answer
  • Urease VacA CagA
  • H. Pylori

Question 36

Question
To Gram - obligatory anaerobic rods belong
Answer
  • Bacteroides
  • Porphyromonas
  • Prevotella
  • Fusobacterium
  • Leptorichia

Question 37

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

Question 38

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

Question 39

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

Question 40

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

Question 41

Question
List 3 infections caused by Escheria Coli
Answer
  • gastroenteritis
  • pneumonia
  • Urinary Tract infection

Question 42

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