What Metabolism Would Be Favored When There is a Lack

Question

What metabolism would be favored when there is a lack of electron acceptors?
A) fermentation
B) anoxygenic photosynthesis
C) anoxic ammonia oxidation
D) acetogenesis

Accepted Answer

Fermentation involves the breakdown of organic compounds in the absence of oxygen and the use of fermentation pathways is favored when there is a lack of electron acceptors available for oxidative phosphorylation in aerobic respiration.