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Question
Tears contain:
Options
lgA
lgG
lysozyme
all of these
MCQ
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Solution
All of these
Explanation:
Tears contain several protective substances, including immunoglobulin A (IgA), which provides immune defense on mucosal surfaces, immunoglobulin G (IgG), and the enzyme lysozyme, which kills bacteria by breaking down their cell walls. Together, these components help protect the eye from infection by neutralizing pathogens and preventing their entry and growth.
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