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When an insect bites,the affected area swells. Which chemicals are likely introduced into the body?
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View SolutionThe toxic substances produced by foreign bodies that trigger an immune response are known as:
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View SolutionState the number of polypeptide chains in $H_{2}L_{2}$ (an antibody molecule).
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View SolutionMatch the following columns:
Column-$I$ Column-$II$ $P$. Physical barriers $I$. Acid in stomach,saliva in mouth,tears from eyes $Q$. Physiological barriers $II$. Skin,mucus coating of epithelium lining the respiratory,gastrointestinal and urogenital tracts $R$. Cellular barriers $III$. Interferons $S$. Cytokine barriers $IV$. Polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,$NK$ cells,macrophages
| Column-$I$ | Column-$II$ |
|---|---|
| $P$. Physical barriers | $I$. Acid in stomach,saliva in mouth,tears from eyes |
| $Q$. Physiological barriers | $II$. Skin,mucus coating of epithelium lining the respiratory,gastrointestinal and urogenital tracts |
| $R$. Cellular barriers | $III$. Interferons |
| $S$. Cytokine barriers | $IV$. Polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,$NK$ cells,macrophages |
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View SolutionWho is known as the father of passive immunity?
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