81. After the damage of body tissues, blood vessel is dilated where damage has occurred, due to which permeability of blood vessel also increases. Vasodilation is caused by-
(a) Histamine (b) Kinin
(c) Prostaglandin (d) All of above
82. The process of sneezing of phagocytes between the endothelial cells of blood vessels and reaching to damaged area is known as-
(a) Margination (b) Metastasis
(c) Diapedesis (d) Angiobiosis
83. In humans interferon is produced by leucocytes, fibroblasts in connective tissue and lymphocytes and are termed as a-IFN, b-IFN and g-INF resp. The interferons are-
(a) Antibacterial proteins (b) Antiviral Protein
(c) Anti cancerous protein (d) Anticancer protein
84. During embryonic stage of human B-lymphocytes are produced in-
(a) Bone marrow (b) Spleen
(c) Liver (d) Bursa
85. Haptens are –
(a) Immunogenic antigen
(b) Non Immunogenic Antigen
(c) High molecular weight non immunogenic antigen
(d) Low molecular weight immunogenic antigen
86. Lysosomes are polymorphous organelles containing vast array of hydrolytic enzymes which can digest any foreign material only at pH-
(a) 5 (b) 6
(c) 9 (d) 7
87. Number of antigen functional binding site in human Immunoglobin-M are-
(a) 2 (b) 5
(c) 10 (d) 20
88. Number of amino acids in light and heavy chain of typical immunoglobin are
respectively-
(a) 110, 220 (b) 220, 440
(c) 440, 880 (d) 880, 1760
89. Among the following which is not essential property of immunoglobin-
(a) Memory (b) Specificity
(c) Diversity (d) Reactivity
90. Spectrin of erythrocytes and cytochrome c of mitochondria, which can be easily dissociated by high ionic strength and metal ion chelating agent are example of-
(a) Extrinsic Protein (b) Intrinsic protein
(c) Tunnel Protein (d) Cytoplasmic Protein
Answer
81. (d) 82. (c) 83. (b) 84. (c) 85. (d) 86. (a) 87. (c) 88. (b) 89. (d) 90. (a)
