The ATP molecule is formed by one nitrogen base (Adenine), one sugar (ribose) and three phosphates.
The center of the molecule is the ribose, with adenine attached to its one side and three phosphates attached to its other side.
The chemical bonds between the sugar and the phosphates are very rich in energy which is why ATP is one of the main sources of energy in the cell. By breaking the phosphate bonds energy is released and ATP is dissolved into ADP and P (adenosine diposphate and phosporus).
The two major phases of the cell cycle include mitosis (cell division), and interphase, when the cell grows and performs all of its normal functions. Interphase is further subdivided into G1, S, and G2 phases. After the synthesis phase, the cell proceeds through the G2 phase.
