All Navy SEALs must attend and graduate from their rating's 24-week A School known as Basic Underwater Demolition/SEAL (BUD/S) school, a basic parachutist course and then the 26-week SEAL Qualification Training program.
Chemical energy that is stored in food molecules is released through cellular respiration. Part of this energy is kept as adenosine triphosphate, or ATP. Although fats, proteins and carbohydrates can also be used as fuel for cellular respiration, glucose is most commonly used as an example. Keep Learning.
When glucose is stored as glycogen or taken in as starch, it must be broken down into individual sugar molecules before cells are able to use it. Chemical energy is stored in the bonds of sugars. When a sugar molecule is broken down, a usable form of energy is released for the cell's life functions. Cells can release energy in two basic processes: cellular respiration and fermentation. Cellular respiration requires oxygen, but fermentation does not.