Adenosine triphosphate (ATP) is the primary source of energy…

Adenosine triphosphate (ATP) is the primary source of energy used by cells to do work. Most organisms produce ATP through a pathway known as cellular respiration, which involves the conversion of food energy (like sugars) into ATP.  When excess levels of ATP are present in cells, they often interact with the enzymes involved in cellular respiration to prevent the conversion of food energy into ATP thus allow that food energy to be stored (often as fat). What type of feedback is this?