Microbial Virulence Factors MCQ

Test your knowledge with important Microbial Virulence Factors MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Microbial Virulence Factors MCQs on Bissoy. Bissoy App

• LT toxin is produced by _____________
  ক

  S. aureus

  খ

  E.coli

  গ

  B. anthracis

  ঘ

  C. perfringens
• Which of the following has the ability to bind antibodies?
  ক

  Coagulase

  খ

  Streptokinase

  গ

  Protein A

  ঘ

  Hydrogen Peroxide
• Hylauronidase enzyme is produced by which of the following organism?
  ক

  C. perfringens

  খ

  S. pyogenes

  গ

  S. aureus

  ঘ

  Mycoplasma
• Which of the following toxin is a hemolysin?
  ক

  diphtheria toxin

  খ

  botulism toxin

  গ

  tetanus toxin

  ঘ

  streptolysin O
• Which of the following statement is wrong regarding the effects of cholera toxin?
  ক

  loss of fluid from the body

  খ

  pH of blood remains constant

  গ

  hemoconcentration

  ঘ

  bicarbonate ions are lost from blood
• How many B subunits are present in cholera toxin?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  5
• Which toxin causes paralysis of muscles?
  ক

  Diphtheria toxin

  খ

  Botulinum toxin

  গ

  Tetanus toxin

  ঘ

  Cholera toxin
• Which amino acid is an inhibitory transmitter?
  ক

  alanine

  খ

  tyrosine

  গ

  glycine

  ঘ

  phenylalanine
• The B region of diphtheria toxin has the enzymatic activity.
  ক

  True

  খ

  False
• Which of the following is a plasmid-mediated toxin?
  ক

  diphtheria toxin

  খ

  botulism toxin

  গ

  tetanus toxin

  ঘ

  food-poisoning toxin
• Which type of toxin is tetanus toxin?
  ক

  enterotoxin

  খ

  neurotoxin

  গ

  cytotoxin

  ঘ

  endotoxin
• Exotoxins are heat-labile in nature.
  ক

  True

  খ

  False
• What is the chemical nature of endotoxins?
  ক

  protein

  খ

  polysaccharide

  গ

  lipopolysaccharide

  ঘ

  lipid
• For Clostridium botulinum type A toxin, 1 MLD for a mouse is ____________
  ক

  2.5 X 10-5 µg

  খ

  4 X 10-5 µg

  গ

  6 X 10-2 µg

  ঘ

  5 µg
• Which bacteria has an unusual capsule among the following?
  ক

  Haemophilus influenzae

  খ

  Klebsiella pneumoniae

  গ

  Streptococcus pneumoniae

  ঘ

  Bacillus anthracis