Final answer:
Fibrous proteins are characterized by being water-insoluble, serving supportive or protective roles, and being composed of long polymer chains that form durable structures in the body.
Step-by-step explanation:
Fibrous proteins are a classification of proteins characterized by their insolubility in water and structural functions in the body. These proteins, which include types like keratins, collagens, myosins, and elastins, have specific roles in forming various tissues such as tendons, bone, and skin. A few key attributes of fibrous proteins are:
- They are typically insoluble in water, contributing to their structural stability within tissues.
- Fibrous proteins have a supportive or protective function, as seen with collagen in connective tissues and keratin in hair and nails.
- They are composed of long polymer chains arranged in fibers or sheets, making them strong and durable and often hydrophobic.
The description of fibrous proteins highlights their crucial role in maintaining the integrity of various body parts and their ability to withstand mechanical stress.