Which enzyme is present in human tears, which kills bacteria?

The enzyme present in human tears that kills bacteria is (c) Lysozyme. Lysozyme is a natural antimicrobial enzyme found in various bodily secretions, including tears, saliva, mucus, and breast milk. It plays a crucial role in the body’s defense against bacterial infections by breaking down the bacterial cell walls. This action disrupts the structural integrity of bacteria, leading to their destruction and subsequent elimination from the body. Additionally, lysozyme’s presence in tears helps protect the eyes from potential bacterial contamination, contributing to ocular health and preventing infections. Its antimicrobial properties make it an essential component of the innate immune system, providing a first line of defense against invading pathogens in various bodily fluids, including tears.