a protein that yields only amino acids when hydrolyzed

a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling

a fibrous scleroprotein found in elastic tissues such as the walls of arteries

a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin

a substance that resembles gelatin and is obtained by boiling cartilage in water

a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves