ATP (Adenosine triphosphate)

• Adenosine triphosphate is a nucleotide derivative and consists of ribose, adenine and three phosphate groups. It is synthesised in the mitochondria and chloroplasts of cells.
• Energy is released when ATP is hydrolysed to form ADP and a phosphate molecule. This process is catalysed by ATP hydrolase.
• • The inorganic phosphate can be used to phosphorylate other compounds, as a result making them more reactive.
• • Condensation of ADP and inorganic phosphate catalysed by ATP synthase produces ATP during photosynthesis and respiration.