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

  • Examples Type of immunity
    Polymorpho-nuclear leukocytes and monocyte  Cellular barriers
  • Examples Type of immunity
    Anti-tetanus and anti-snake bite injections Active immunity

  • Examples Type of immunity
    Saliva in mouth and Tears in eyes Physical barriers

  • Mucus coating of epithelium lining the urinogenital tract and the HCl in stomach

Answer

A.

Examples Type of immunity
Polymorpho-nuclear leukocytes and monocyte  Cellular barriers

Phagocytosis is an important feature of cellular innate immunity, performed by cells called phagocytes that engulf or eat pathogens or foreign particles. Common examples of these phagocytes are monocytes, macrophages, neutrophil granulocytes (often referred to as polymorphonuclear leukocytes or PMN or PML, because of the varying shapes of nucleus), tissue dendritic cells, mast cells etc. Antitetanus and anti snake bite injections are examples of passive immunity. 

Phagocytosis is an important feature of cellular innate immunity, performed by cells called phagocytes that engulf or eat pathogens or foreign particles. Common examples of these phagocytes are monocytes, macrophages, neutrophil granulocytes (often referred to as polymorphonuclear leukocytes or PMN or PML, because of the varying shapes of nucleus), tissue dendritic cells, mast cells etc. Antitetanus and anti snake bite injections are examples of passive immunity.