Cellular Metabolism and Glucose Metabolism

Cellular metabolism and glucose metabolism are closely linked. Cellular metabolism is comprised of all the chemical reactions that occur in living cells -- these reactions can be anabolic and catabolic. Anabolism, or constructive metabolism, is the process of synthesis required for the growth of new cells and the maintenance of all tissues. Catabolism, or destructive metabolism, is a continuous process concerned with the production of the energy required for all external and internal physical activity; this is where glucose metabolism falls into.

Sugar Metabolism is the process by which the body uses sugar for energy. The end product of the digestion and assimilation of all forms of carbohydrate is a simple sugar called glucose. Interestingly, the metabolism of fat and protein molecules in our diets are closely linked to the metabolism of glucose since many of these molecules are converted to products that closely resemble glucose. Therefore, glucose is the principal fuel that the muscles and other portions of the body consume to produce energy. It is present in every cell and almost every fluid of the body, and its concentration and distribution are among the most important processes in human physiology.

I'm not sure how in-depth of an answer you're looking for, but it gets a lot more detailed beyond this.