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Question

Which of the following substance is present in saliva that act as germicide?

A
Lysozyme
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B
Secretin
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C
Chyme
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D
Cerumin
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Solution

The correct option is A Lysozyme
Lysozyme is an antimicrobial enzyme produced by animals that form part of the innate immune system. Lysozyme is present in saliva. The enzyme functions by attacking, hydrolyzing, and breaking glycosidic bonds in peptidoglycan (cell wall) of bacteria. Hence, it acts as germicide.

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