Human Health and Diseases Question 64

64. In which one of the following options the two examples are correctly matched with their particular type of immunity.

[2012]

| | Examples | Types of
immunity |

| :— | :— | :— |

(a) | Polymorphonuclear
leukocytes and
monocytes | Cellular
barriers |

(b) | Anti-tetanus and anti-
snake bite injection | Active
immunity |

(c) | Saliva in mouth and
Tear in eyes | Physical
barriers |

(d) | Mucus coating of
epithelium lining the
urinogenital tract-and
the HCl in stomach | Physiological
barriers |

Show Answer

Answer : a

Hints & Solutions

(a) Polymorphonuclear leukocytes named so, as they have multilobed nucleus or neutrophils and monocytes are the cellular barrier provide innate or nonspecific immunity. Cellular barriers are the internal defence or second live of defence.