Cellular Respiration : Energy From Food Sources

1596 Words May 30th, 2016 7 Pages
Cellular respiration is how we extract energy from food sources, especially food sources such as glucose as most of the food we eat ends up as glucose in the body. The chemical formula for one molecule of glucose is C6H12O6. In order to turn this glucose into energy, oxygen is needed. This is done through cellular respiration where the glucose and oxygen is turned into 6 molecules of CO2, 6 molecules of water and some energy. Before we can use that energy our body has just produced we have to turn it into a specific form of stored energy called ATP or adenosine triphosphate. In order for our body to use the energy we make our cells need the energy to be transferred into ATP, adenosine triphosphate to be able to let our body do anything. Adenosine triphosphate is made up of adenine, ribose and three phosphate groups attached to it. The three phosphate groups are very uncomfortable being next to each other, so ATP splits them up shifts one of the phosphate groups off the end creating Adenosine diphosphate. In this reaction energy is released. Through cellular respiration one molecule of glucose can yield a bit of heat energy and 38 molecules of ATP at its best, a normal range would be between 29-30 molecules of ATP. Cellular respiration isnt something that happens all at once. Glucose is is transformed into ATP’s over 3 separate stages; Glycolysis, the krebs cycle and the electron transport chain. Glycolysis is just the breaking up of the glucose 6 carbon rings into two…
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