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 peptidoglycan present in the cell wall of microorganisms especially eubacteria.
Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
NEET UG 2011 — Zoology Human Health and Diseases
2011mcqhard
Which one of the following acts as a physiological barrier to the entry of microorganisms in human body?
Official previous-year question
Held on 30 Apr 2011 · Verified 9 Jul 2026.
Options
- A
Tears
- B
Monocytes
- C
Skin
- D
Epithelium of urogenital tract
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