Question

Describe the structure of ATP.

Answer 1

a. Structurally, the ATP consists of nitrogenous purine base called Adenine, a pentose sugar called Ribose (C₅H₁₀O₅) and 3 Phosphate molecules.

b. Adenine and ribose sugar together form Adenosine. Adenosine with 1 phosphate, 2 phosphates and 3 phosphates are called AMP, ADP and ATP respectively. 

c. Between the 2nd and 3rd molecules of phosphate, a high energy phosphate bond is present. For the formation of these bonds, energy is given by either light (Photophosphorylation) or oxidative process of respiration (oxidative phosphorylation).