Bacteriophage is a kind of virus that can infect bacteria and start replicating inside the bacterial cell because the lysis represents the lytic cycle. Lysogenic cycle allows the host cell to continue to survive and reproduce, the virus is reproduced in all of the cell's offspring. Any hormone (such as epinephrine, glucagon, and cortisol) that promotes release of free fatty acids from fat tissue is known as lypolytic. Lysozyme is a naturally occurring enzyme found in bodily secretions such as tears, saliva, and milk and act as an antimicrobial agent Related Theory Human lysozyme act as physiological barrier in immune system against some bacteria. It is found in abundance in tears, saliva and mucous.