Question

Lysozyme in saliva is an example of
(a) Physical barrier
(b) Cytokine barrier
(c) Physiological barrier
(d) Cellular barrier

Answer 1

Its physical barrier it also occures in the eyes ie tears

Answer 2

Answer:

Lysozyme in saliva is an example of physiological barrier

Explanation:

The ability of a host to fight the disease-causing organism, conferred by the immunity system is called immunity. The immunity of a host is of two types; Innate immunity and Acquired immunity. Innate immunity is present at the time of birth, it is a nonspecific type of defense. This is done by providing different types of barriers to the entry of foreign agents into our bodies.

Innate immunity is consists of four types of barriers. They are;

• physical barrier

• physiological barrier

• cellular barrier

• cytokine barrier

Lysozyme in saliva, the acid in the stomach, tears from the eyes- all come under the physiological barrier. These will prevent microbial growth.