What compound is formed to store energy during glucose catabolism?

During glucose catabolism, the primary compound formed to store energy is adenosine triphosphate (ATP). When glucose is broken down in a process known as cellular respiration, it undergoes glycolysis, the citric acid cycle, and oxidative phosphorylation, all of which contribute to the production of ATP.

ATP acts as the energy currency of the cell, providing energy for various biological processes, including muscle contraction, active transport across membranes, and biosynthetic reactions. Its structure, consisting of three phosphate groups, allows ATP to store energy in the high-energy bonds between these phosphates. When one of these bonds is broken, energy is released for use by the cell.

Other options do not play a direct role in the storage of energy derived from glucose catabolism. RNA and DNA are nucleic acids involved in genetic information storage and protein synthesis rather than energy storage. Glucose itself is the initial reactant rather than a stored energy product. Hence, adenosine triphosphate is the correct answer for energy storage during glucose catabolism.