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MCQs

Total Questions : 339 | Page 33 of 34 pages
Question 321. Which of these cytokines is also known under the name cachectin?
  1.    Tumor necrosis factor (TNF)
  2.    None of these
  3.    Interferon gamma
  4.    Interleukin 2
 Discuss Question
Answer: Option A. -> Tumor necrosis factor (TNF)
Question 322. The agent responsible for causing mad cow disease is thought to be a
  1.    protozoan
  2.    prion
  3.    virus
  4.    fungus
 Discuss Question
Answer: Option B. -> prion
Question 323. Which is not a major defense mechanism in the stomach?
  1.    All of these
  2.    Proteolytic enzymes
  3.    Dense normal flora
  4.    Low pH
 Discuss Question
Answer: Option C. -> Dense normal flora
Question 324. The "A" subunit of diphtheria toxin
  1.    forms cAMP that leads to fluid accumulation
  2.    lysis macrophages with the release of cytokines
  3.    binds host cell receptors found on heart cells
  4.    cause ADP ribosylation of a factor involved in protein synthesis
 Discuss Question
Answer: Option D. -> cause ADP ribosylation of a factor involved in protein synthesis
Question 325. Coxsackie virus B3, a subgroup of enteroviruses, commonly causes
  1.    muscular dystrophy
  2.    gastroenteritis
  3.    acute hemorrhagic conjunctivitis
  4.    myocarditis
 Discuss Question
Answer: Option D. -> myocarditis
Question 326. Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes?
  1.    Antibodies to the pathogen are protective
  2.    The pathogen can live inside macrophages
  3.    The pathogen contains mycolic acid in its cell wall
  4.    None of these
 Discuss Question
Answer: Option A. -> Antibodies to the pathogen are protective
Question 327. Prontosil is
  1.    an effective antibacterial when used in animals
  2.    an effective antibacterial when used in in-vitro cultures
  3.    not used as an antibacterial agent
  4.    an effective antibacterial both in animals as well as in in-vitro cultures
 Discuss Question
Answer: Option D. -> an effective antibacterial both in animals as well as in in-vitro cultures
Question 328. Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease?
  1.    Botulism
  2.    Diphtheria
  3.    Tetanus
  4.    Shigellosis
 Discuss Question
Answer: Option A. -> Botulism
Question 329. All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever?
  1.    Chicken pox
  2.    Malaria
  3.    Typhoid
  4.    Rheumatic disease
 Discuss Question
Answer: Option D. -> Rheumatic disease
Question 330. An important host defense of human beings is a dense resident microbiota associated with
  1.    lungs
  2.    uterus
  3.    vagina
  4.    bladder
 Discuss Question
Answer: Option C. -> vagina

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