Mucous is primarily made up of which component?

Mucous is primarily composed of mucins, which are high molecular weight glycoproteins. These mucins play a crucial role in the formation of mucus, contributing to its viscous and gel-like properties. The glycosylation of mucins, where carbohydrate chains are attached to the protein backbone, gives mucus its unique characteristics, such as hydration, lubrication, and the ability to trap pathogens and particles. This composition is essential for various physiological functions, including protecting epithelial surfaces in the respiratory and digestive tracts, facilitating the passage of food, and providing a barrier against infections.

While proteins, lipids, and carbohydrates are important components of various biological substances, in the context of mucus, mucins are specifically recognized for their significant contribution to its structure and function.