Diarrhea is one of the most common causes. It can be caused by eating wrong kind of foods or by overeating. Consumption of contaminated food can lead to bacterial or viral infection in the stomach resulting in diarrhea and cramping of stomach.
Structural Biochemistry/ATP. Adenosine triphosphate (ATP) is a nucleotide that consists of an adenosine and a ribose linked to three sequential phosphoryl (-PO32-) groups via a phosphoester bond and two phosphoanhydride bonds. ATP is the most abundant nucleotide in the cell and the primary cellular energy currency in all life forms. The primary biological importance of ATP rests in the large amount of free energy released during its hydrolysis.
Adenosine triphosphate (ATP) is a nucleotide used in cells as a coenzyme. It is often called the molecular unit of currency: ATP transports chemical energy within cells for metabolism. Every cell uses ATP for energy. It consists of a base (adenine) and three phosphate groups. One molecule of ATP contains three phosphate groups, and it is produced by ATP synthase from inorganic phosphate and adenosine diphosphate (ADP, the di meaning two phosphate groups) or adenosine monophosphate (AMP).