A) Tears
B) Monocytes
C) Skin
D) Epithelium of urogenital tract
Correct Answer: A
Solution :
Physiological barriers to the entry of microorganisms in human body are tears in eyes, saliva in mouth and HCl in stomach. The enzyme lysozyme is found in tears and saliva, and inhibits the synthesis of peptidogly can present in the cell wall of microorganisms especially eubacteria.
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