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.
Horizontal Social Mobility. Horizontal mobility one of the types of mobility, is the straight change from left to right or right to left. In horizontal mobility to place is changed but the social position of an individual remains on the same level. For example; when a lecture is transferred from one government college to another with the same grade or pay scale and as a teacher is horizontal mobility.