Question

How does human skin act as a chemical barrier against bacterial attacks?

Answer 1

Human skin acts as a chemical barrier against bacterial attacks by producing antibacterial substances such as enzymes (e.g., lysozyme) in sweat and secretions, which inhibit bacterial growth. Additionally, the skin’s acidic environment helps prevent bacterial colonization. This, combined with the mechanical barrier of the skin’s surface, helps protect the body from microbial invasion.