Phosphorus is most abundantly seen in the body as a constituent of the molecule phosphate, one of the bone salts which add structural rigidity to the softer protein matrix of bone and teeth. Perhaps phosphorusâ most important metabolic role is as a constituent of the molecule phosphate.
Structural mobility refers to change in society that allows large numbers of people to move up or down the class ladder. Structural mobility has also taken place between my grandmother, my mother, and me. My mother moved up the social class ladder because she was more successful than her mother.
The term structural system or structural frame in structural engineering refers to load-resisting sub-system of a structure. The structural system transfers loads through interconnected structural components or members. Commonly used structures can be classified into five major categories, depending on the type of primary stress that may arise in the members of the structures under major design loads.