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  • Please help! Which one of the following acts as a physiological barrier to the entry of micro-organisms in human body?

Which one of the following acts as a physiological barrier to the entry of micro-organisms in human body?

  • Option 1)

    Epithelium of urogential tract

  • Option 2)

    Tears

  • Option 3)

    Monocytes

  • Option 4)

    Skin

 

Answers (1)

best_answer

As we learnt in 

Types of barrier to achieve Innate Immunity -

Physiological barriers

- wherein

Acid in the stomach, saliva in the mouth, tears from eyes–all prevent microbial growth.

 

 

Physiological barriers to the entry of microorganisms in the human body are tears in eyes, saliva in mouth and HCl in the stomach.The enzymes lysozymes are found in tears and saliva and inhibit the synthesis of peptidoglycan present in the cell wall of microorganisms especially eubacteria

 

 


Option 1)

Epithelium of urogential tract

Incorrect

Option 2)

Tears

Correct

Option 3)

Monocytes

Incorrect

Option 4)

Skin

Incorrect

Posted by

Aadil

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