60. Which of the followi ng is more responsible for narrowing of airways during
ID: 305322 • Letter: 6
Question
60. Which of the followi ng is more responsible for narrowing of airways during an allergic reaction? A. Bradykinin B. Histamine C. Serotonirn D. Arachadonic acid 61. Which of the following cells do carry out phagocytosis? A. basophils B. neutrophils C. dendritic cells D. eosinophils 62. Which of the following macromolecules usually act as the best immunogens? A. carbohydrates B. lipids C. proteins D. nucleic acids 63. The isotype of an immunoglobulin molecule is determined by the expression of genes that encode for the A. light chains. B. hinge region. C. heavy chains. D. hypervariable regions. 64, Mice that lack the receptor FccRl are resistant to what type of allergic hypersensitivity reaction? A. Type I B. Type II C. Type III D. Type IV 65. function in inhibiting viral replication A. acute-phase proteins B. interleukins C. interferons D. pyrogens E. STAT 66. Which of the following is a cause of "farmer's lung A. atinocomycetes C. the bacteria that causes tuberculosis D. azioprine E. peanutsExplanation / Answer
60. Correct answer:- (C) serotonin
Explanation :- serotonin is more responsible for narrowing of the airway during allergic reaction.
61. Correct answer:- (B) neutrophils
Explanation:- phagocytosis is carried out by neutrophils.
62. Correct answer:- (C) proteins
Explanation:- proteins best act as immunogen.
63. Correct answer:- (C) heavy chains
Explanation :- heavy chains determines the isotype of an immunoglobulin.
64. Correct answer:- (A) type I
Explanation:- Fc?RI is the key structure mediating immediate-type inflammation via the IgE-dependent or type I hypersensitivity reactions.
65. Correct answer:- (C) interferon
Explanation:- interferons are protein that inhibits viral replication.
66. Correct answer:- (A) Actinomycetes
Explanation:-farmers lung is a serious disabling pulmonary disease found in agricultural workers.
-it is a hypersensitivity to the thermophilic actinomycetes, mainly Thermopolyspora polyspora.
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