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Lysozyme that is present in perspiration, saliva and tears, destroys

1. certain types of bacteria
2. all viruses
3. most virus-infected cells
4. certain fungi

Correct answer: certain types of bacteria

Solution

Lysozyme is an enzyme found in tears, saliva, and sweat that hydrolyzes peptidoglycan in bacterial cell walls. This makes it effective against certain bacteria, not viruses or fungi.

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