Explain Structural protiens
Structural proteins are fibrous proteins. The most familiar of the fibrous proteins are probably the keratins, which form the protective covering of all land vertebrates: skin, fur, hair, wool, claws, nails, hooves, horns, scales, beaks and feathers. Equally widespread, if less visible, are the actin and myosin proteins of muscle tissue. Structural proteins are very significant for support. Collagen and elastin give a fibrous framework in animal connective tissues, such as tendons and ligaments.