Zoology - Human Health and Diseases Question with Solution | TestHub

Option (3) is the answer as it represents the correct match of list I and list II because, - Cytokine barriers includes interferons which are proteins secreted by virus infected cells to protect non-infected cells from further viral infection. - Cellular barriers include certain types of W.B.Cs of our body like neutrophils and monocytes and natural killer cells in the blood as well as macrophages in tissues. - Physiological barriers includes acid in the stomach, tears form eyes and saliva in mouth-all prevent microbial growth. Physical barriers include skin and mucus coating of respiratory tract, GIT etc.