Depending upon the metabolism:
- carbon dioxide
- water
- methane
- hydrogen sulfide
- nitrogen gas
- nitrous oxide
- organic acids
- alcohols
- molecular hydrogen
- reduced metals
- oxidized minerals
Operational definition
Metabolic output.
Products that the focal system does not further metabolize under the specified conditions and pathway boundary.
Examples include:
- carbon dioxide;
- water;
- methane;
- lactate;
- ethanol;
- hydrogen;
- nitrogen gas;
- sulfide;
- reduced or oxidized minerals.
“Terminal” is relative to the focal organism and environment. Another organism may use the same product as a substrate.