Collagen shapes the structures of tendons, bones, cartilage and connective tissue.
It also strengthens the skin, and attaches it to the underlying muscles. Its molecules are shaped like long, thin rods, with many attachment points where they can be stuck together. They can form strong, rigid structures, and they can be firmly attached to many other kinds of molecules. Inc. All rights reserved. Cool Fact of the Day is a trademark of The Learning Kingdom, Inc.