ATP, or adenosine triphosphate, is a type of organic molecule known as a nucleotide. Nucleotides are the building blocks of nucleic acids like DNA and RNA. ATP consists of three main components: a nitrogenous base called adenine, a sugar molecule called ribose, and three phosphate groups.
The primary role of ATP is to store and transfer energy within cells. When ATP is broken down into ADP (adenosine diphosphate) and an inorganic phosphate, energy is released. This energy is then used to power various cellular processes, such as muscle contraction, nerve impulse propagation, and chemical synthesis.
In summary, ATP is a nucleotide that plays a crucial role in energy transfer within cells, making it essential for the survival and function of all living organisms.