Fermentation often produces CO₂, which can be used by ________ as an electron acceptor for energy.
A) acetogens
B) methanotrophs
C) methanogens
D) acetogens and methanogens

Question

Quizplus · Accepted Answer

Acetogens and methanogens can both use CO₂ as an electron acceptor for energy in their respective fermentation processes. Methanotrophs, on the other hand, use methane as their electron donor and therefore would not utilize CO₂ in this way.

Fermentation Often Produces CO₂, Which Can Be Used by ________