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Question

Which substance of saliva destroy the harmful bacteria?

A
Cerumin
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B
Chyme
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C
Lysozyme
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D
Secretin
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Solution

The correct option is C Lysozyme
Human lysozyme is commonly associated with innate immunity, which forms the first line of defense against infections. In the human body, it functions primarily as an antimicrobial by breaking down the carbohydrates in bacterial cell walls, killing the bacteria. This is why it is such an effective cell lysis agent. In saliva, it protects the oral cavity from pathogens and in times of increased inflammation, there is an increase in lysozyme present. Lysozyme also has fungicidal properties, protecting mucosal areas from invasion by pathogenic yeast or fungi.

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