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MCQs

Total Questions : 191 | Page 9 of 20 pages
Question 81. Soluble proteins that function as recognition elements that bind foreign molecules and serve as markers signaling foreign invasion are called as
  1.    antigens
  2.    antibodies
  3.    fighters
  4.    epitope
 Discuss Question
Answer: Option B. -> antibodies
Answer: (b).antibodies
Question 82. The inherited metabolic diseases were classified as disorders of
  1.    carbohydrate metabolism
  2.    amino acid metabolism
  3.    organic acid metabolism
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 83. Following are the defenses of the colon except
  1.    sIgA
  2.    fast flow rate
  3.    dense resident microbiota
  4.    mucus
 Discuss Question
Answer: Option B. -> fast flow rate
Answer: (b).fast flow rate
Question 84. Natural killer cells are involved in
  1.    tumour rejection
  2.    allograft rejection
  3.    non-specific killing of virus transformed target cells
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 85. Immunity is not long lasting to
  1.    influenza
  2.    whooping cough
  3.    diphtheria
  4.    mumps
 Discuss Question
Answer: Option A. -> influenza
Answer: (a).influenza
Question 86. Which of the following(s) is/are the determinants of antigenicity?
  1.    Chemical nature
  2.    Size of the antigen
  3.    Foreignness
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 87. Which of the following is correct?
  1.    All T Cells are CD4+
  2.    An epitope can have multiple antigens
  3.    T Cell receptors are generated by random assortment of gene cassettes
  4.    MHC Class II molecules are generated by random assortment of gene cassettes
 Discuss Question
Answer: Option C. -> T Cell receptors are generated by random assortment of gene cassettes
Answer: (c).T Cell receptors are generated by random assortment of gene cassettes
Question 88. Lysozyme is present in
  1.    sweat
  2.    Cerebro spinal fluid (CSF)
  3.    urine
  4.    saliva
 Discuss Question
Answer: Option D. -> saliva
Answer: (d).saliva
Question 89. Which of the following statements is false regarding B cells?
  1.    B cells can undergo class switching and produce a different antibody type
  2.    B one marrow stem cells migrate to the thymus and develop into B cells
  3.    B cells synthesize antibodies and put them on their cell surface
  4.    B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow
 Discuss Question
Answer: Option B. -> B one marrow stem cells migrate to the thymus and develop into B cells
Answer: (b).B one marrow stem cells migrate to the thymus and develop into B cells
Question 90. Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is
  1.    actin
  2.    interleukin
  3.    HLA
  4.    CD8
 Discuss Question
Answer: Option D. -> CD8
Answer: (d).CD8

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