what is endogenous respiration
Endogenous Respiration. Endogenous respiration, also referred to as endogenous metabolism, is defined here as âa situation where living organisms oxidize some of their own cellular mass instead of new organic matter they ad sorb or ab sorb from their environmentâ (California State University, Sacramento, Volume II).hen the OUR value is 9 (mg O 2 /L)/hr the oxygen requirement in the aeration tank is 9,143 lb O 2 /day, 6,857 below what the aerators are capable of producing. That is, as we approach the endogenous respiration rate we begin to have excess oxygen which increases the DO concentration in the reactor.