What Antibacterial Chemical is Present in Tear Fluid

Question

What antibacterial chemical is present in tear fluid?
A) antibodies
B) complement
C) defensins
D) lysozyme
E) interferon

Accepted Answer

Lysozyme is present in tear fluid and has antibacterial properties. It works by breaking down the cell walls of certain bacteria, leading to their destruction. Antibodies, complement, defensins, and interferon may also have antimicrobial effects, but they are not typically found in high concentrations in tear fluid.