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Which one of the following acts as a phy...

Which one of the following acts as a physiological barrier to the entry of microorganisms in human body

A

Epithelium of Urogenital tract

B

Tears

C

Monocytes

D

Skin

Text Solution

Verified by Experts

The correct Answer is:
B
Epithelium of urogential tract and skin are physical barriers.
Monocytes are cellular barrier.
Tear, saliva and acid in stomach are physiological barriers.
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  • Which of the following acts as a positive ligand?

    A
    acetate
    B
    carbonyl
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    nitro
    D
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    A
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    B
    carbon
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    potassium

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    A
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    B
    `NO^+`
    C
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    D
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