Which material in skin provides protection from abrasions, water damage, and microorganism entry?

Question

Quizplus · Accepted Answer

Keratin is a tough, fibrous protein that creates a barrier on the surface of the skin, providing protection from abrasions and water damage. It also serves as a physical barrier to prevent microorganisms from entering the body. Salt helps to kill microorganisms, but it doesn't provide protection from abrasions or water damage. Lysozyme is an enzyme that can break down bacterial cell walls, but it doesn't provide physical protection. Sweat and sebum are involved in maintaining skin hydration and pH, but they don't provide the same level of physical protection as keratin.

Which Material in Skin Provides Protection from Abrasions, Water Damage