The production of energy-rich atp molecules is the direct result of

Respiration

Explanation:

During respiration, the energy locked up in food materials is released through the breakdown of the food materials in a series of complex reactions summarized by the equations below:

 for aerobic respiration

for anaerobic respiration.

The energy is released in the form of an energy-rich chemical compound known a ATP and this is used to drive various metabolic processes in biological organisms.

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