microbiology

Description

Micro.
atbaa  2020
Quiz by atbaa 2020, updated more than 1 year ago
atbaa  2020
Created by atbaa 2020 over 8 years ago
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Resource summary

Question 1

Question
Nagler's reaction is used in rapid diagnosis of :
Answer
  • A) Gas gangrene
  • B) Tetanus
  • C) Diphteria
  • D) Botulism

Question 2

Question
A 22-year old man fell while riding his motor cycle and suffered an open fracture of his left femur and severe lacerations and crushing injury into the thigh . 24 hours later, pain and swelling in the thigh increased rapidly . serous dicharge from the wound was observed and a crepitus was felt. an important virulence factor of the causative organism is:
Answer
  • A) Botulinum neurotoxin
  • B) Edema factor
  • C) Epidermolytic factor
  • D) Lethicinase enzyme
  • E) tetanospasmin

Question 3

Question
Traditional media for diagnosis of T.B include all of the following EXCEPT:
Answer
  • A) BACTEC system
  • B) Lowenstein Jensen
  • C) Middle brook agar
  • D) Middle brook broth

Question 4

Question
Actinomyces are differentiated from nocardia by all of the following except;
Answer
  • A) Commensals in mouth , Git and female genital tract
  • B) produce sulpher granules
  • C) not acid fast
  • D) slower growing organism

Question 5

Question
Which of the following cause TB like disease ?
Answer
  • A) M.Kansasii
  • B) N. Asteroides
  • C) A+B
  • D) M. avium intracellulare

Question 6

Question
Nocardia brasiliensis infection occurs by:
Answer
  • A) Droplet
  • B) Damage of mucousal barrier
  • C) Traumatic introduction into S.C tissues
  • D) all of the above

Question 7

Question
The Env polyprotein is cleaved by:
Answer
  • A) viral protease
  • B) viral polymerase
  • C) host protease
  • D) all of the above

Question 8

Question
The following condition is responsible for HIV antigenic variation:
Answer
  • A) GP 120 Ag mutation
  • B)lack of reverse transcriptase enzyme
  • C)integration of proviral DNA copy into host cell genome
  • D) all of the above

Question 9

Question
Seroconversion in HIV occurs :
Answer
  • A) 6 months after infection
  • B) 1-4 weeks after infection
  • C) In clinical latency
  • D) Non of the above

Question 10

Question
which of the following viruses cause neck rigidity ;
Answer
  • A) sand fly fever virus
  • B) Dengue virus
  • C) Lassa virus
  • D) Hanta virus

Question 11

Question
which of the following viruses cause pulmonary disease:
Answer
  • A) Lassa virus
  • B) yellow fever virus
  • C) Dengue virus
  • D) Hanta virus

Question 12

Question
The main virulence factor f pseudomonas in chronic lung disease associated with pts with cystic fibrosis of the lung is:
Answer
  • A) Capsule
  • B) hemolysin
  • C) elastase
  • D) pilli

Question 13

Question
Which of the following G-ve bacilli is Ampicillin and cephalosporin sensitive:
Answer
  • A) p.Mirabilis
  • B) p. vulgaris
  • C) K.aerogenes
  • D) k.ozaene

Question 14

Question
which of the following bacteria causes osteomylitis in pts with sickle cell anemia
Answer
  • A) salmonella cholerasuis
  • B) staph aureus
  • c) A+B
  • D) pseudomonas

Question 15

Question
which of the following is H2s positive
Answer
  • A) NOn diahrreogenic Ecoli
  • B) Klebsiella
  • C) pseudomonas
  • D) proteus

Question 16

Question
which of the following diseases is/are caused by ssp.pnemoniae (klebsiella)?
Answer
  • A) Neonatal meningitis
  • B) atrophic rhinitis
  • C) Fried - lander pneumonia and wound infection
  • D) A+c

Question 17

Question
Recovery in Rhinoviruses common cold is due to:
Answer
  • A) IFN alpha
  • B) IFN gamma
  • C) IL1
  • D) non of the above

Question 18

Question
which of the following viruses cause hgic conjunctivitis:
Answer
  • A) Coxsakie Group A
  • B) Coxsakie Group B
  • C) type 70 enterovirus
  • D) A+C

Question 19

Question
which of the following viruses cause Aseptic meningitis and flaccid paralysis:
Answer
  • A) polio virus
  • B) type 71 enterovirus
  • C) type 68 enterovirus
  • D) A+B

Question 20

Question
the best method for diagnosis of polio virus is:
Answer
  • A) RT-PCR
  • B) serotyping
  • C) A+B
  • D) non of the above

Question 21

Question
which of the following viruses causes infantile gastroenteritis:
Answer
  • A) corona virus
  • B) Rota virus
  • C) polio virus
  • D) non of the above

Question 22

Question
all of the following bacteria are non motile except:
Answer
  • A) yersinia pestis
  • B) klebsiella
  • C) shigella
  • D) H.pylori

Question 23

Question
the main virulence factor of yersinia pestis responsible for dissemination is:
Answer
  • A) plasminogen activator
  • B) cytotoxin associated antigen
  • C) polypeptide capsule
  • D) non of the above

Question 24

Question
which of the following causes hydrolysis of Hippurate:
Answer
  • A) campylobacter coli
  • B) campylobacter jeujeni
  • C) H PYLORI
  • D) all of the above

Question 25

Question
all of the following are urease positive except:
Answer
  • A) pseudomonas
  • B) proteus
  • C) H pylori
  • D) Y. pseudotuberclosis

Question 26

Question
cholera red reaction is seen in:
Answer
  • A) V.cholera
  • B) Ecoli
  • C) K.oxytoca
  • D) p.vulgaris
  • E) all of the above

Question 27

Question
treatment of animal bite fever is:
Answer
  • A) penicillin G
  • B) aminoglycosides
  • C) CIPROFLOXACIN
  • D) metronidazole

Question 28

Question
which of the following bacteria is cultured on glucose cysteine blood agar:
Answer
  • A) franscisella tularensis
  • b) pasturella multocida
  • C) brucella
  • D) y.pseudotuberclosis

Question 29

Question
all of the following survive IC in phagocytes except:
Answer
  • A) brucella
  • B) legionella
  • C) franscisella
  • D) Campylobacter coli

Question 30

Question
treatment of meningitis and epiglottitis caused by H.influenza is treated by :
Answer
  • A) ceftriaxone
  • B) amoxicillin
  • C) Tetracyclin
  • D) all of the above
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