The process of phosphorylating ADP to form ATP and removing a phosphate from ATP to form ADP in order to store and release energy respectively is known as the ATP cycle.
ATP stands for adenosine triphosphate. Adenosine triphosphate is an energy source that is used in living things. ATP is created during cellular respiration. During cellular respiration, oxygen and glucose are converted into carbon dioxide gas, water, and ATP.
ATP is composed of three main sections. In the center of an ATP is a molecule of ribose sugar. Attached to one side of ribose is a nitrogen group called adenine. On the opposite side of the ribose are three phosphates. The energy within an ATP molecule is stored in the phosphate bonds of the ATP.
When a cell needs energy, a phosphate is removed from ATP. Upon this dephosphorization, ATP is converted into ADP and energy is released. ADP stands for adenosine diphosphate. ADP has only two phosphates.
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