Microbial Metabolism

Question 1

Fermentation

Answer 1

Redox process without exogenous electron acceptors
ATP formed by substrate-level phosphorylation
Initial compound oxidized and reduced
Proton motive force not involved

Question 2

Respiration

Answer 2

Exogenous electron acceptor
Commonly O2 (terminal acceptor)
ATP by oxidative phosphorylation
Proton motive force involved