Essay On Glucose

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Introduction Glucose is one of important source in the body because it is the primary source of energy for all body functions and is indeed the only form of energy which can used by the brain and central nervous systems. It is necessary for blood glucose levels to be regulated and this is achieved through homeostasis; however, low blood glucose or high blood glucose can lead to serious problems overtime. Thus, maintaining normal blood glucose is greatly decreases the risk of further complications due to diabetes. In this paper, I will explain how the glucoses move across the cell membrane including the difference between simple and facilitated diffusion. Glucose cannot diffuse directly into cells, but enter by one of two transport mechanism: simple diffusion (active transport) and facilitated diffusion. The glucose is transported by simple transport from the gut into intestinal epithelial cells, but by facilitated diffusion across the membrane of red blood cells. Active transport moves from low concentration to higher concentration and it requires some form of chemical energy. ...

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