Question

Give one reason why lysozyme is considered an enzyme and not a hormone. How does it defend the body? Name any two secretions in human body which contain lysozyme.

Answer 1

Lysozyme is an enzyme that destroys bacteria by breaking the links between the molecules forming the peptidoglycan layer and thus damaging the bacterial cell wall. It provides the first line of defense against invading bacteria. Saliva and tears are secretions of human body that contain lysozyme.