Question

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

• A.

  Examples	Type of immunity
  Mucus coating of epithelium lining the urinogenital tract and the HCl in stomach	Physiological barriers

• B.

  Examples	Type of immunity
  Saliva in mouth and tears in eyes	Physical barriers

• C.

  Examples	Type of immunity
  Polymorphonuclear leukocytes and monocyte	Cellular barriers

• D.

  Examples	Type of immunity
  Anti–tetanus and anti–snake bite injection	Active immunity

Answer 1

The correct option is C

Examples	Type of immunity
Polymorphonuclear leukocytes and monocyte	Cellular barriers

Following are the examples with their specific type of immunity-
(A) Examples - Polymorphonuclear leucocytes and monocytes, Type of immunity - Cellular barriers.
(B) Examples - Anti-tetanus and anti-snake bite injections, Type of immunity - Passive immunity (as ready-made antibodies are directly given).
(C) Examples - Saliva in mouth and tears in eyes, Type of immunity - Physiological barriers (prevent microbial growth).
(D) Examples - Mucus coating of epithelium lining the urinogenital tract and the HCl in the stomach, Type of immunity - Physical barriers (trap microbes).

So, the correct answer is option-a.