Biological And Physical Process Of Aging Essay -- essays research pape

The develop process is difficult to analyze because of the way that the bodys organ systems work together. The breakdown of one structure get out in the long run affect the function of others. The medical field of gerontology deals with examining the biological changes of aging, some(prenominal) passive and active, that occur at the molecular and cellular levels. This paper will seek to explore those changes, and the affect that they set out on the process of aging. age as a passive process involves the breakdown of structures and the resulting slowing of functions. At the molecular level, passive aging is seen as the degeneration of the elastin and collagen proteins of connective tissues. These proteins atomic number 18 primarily responsible for the smoothness and firmness of young skin. Consequently, when these proteins breakdown, the skin will sag, and the muscle will lose its firmness. Another sign of passive aging is the breakdown of lipides at the biochemical level. As a ging membranes leak during this lipid degeneration, a fatty, brown pigment known as lipofuscin accumulates. As this happens, the mitochondria, or the powerhouse of the cell begins to break down, thereby decreasing the amount of aptitude that is being supplied to the cell. This cellular degeneration may be set into carry through by highly reactive chemicals known as free radicals. These molecules have an unpaired electron in the outermost valence shell. This causes the molecule to catch electrons from other molecules, setting into motion a chai...