Anaerobic Bacteria May Use ________ as the Final Electron Acceptor

Question

Anaerobic bacteria may use ________ as the final electron acceptor during anaerobic respiration.
A) nitrate only
B) carbon dioxide only
C) sulfate only
D) both nitrate and sulfate
E) carbon dioxide, nitrate and sulfate

Accepted Answer

Anaerobic bacteria can use nitrate or sulfate as the final electron acceptor during anaerobic respiration. Therefore, choice D (both nitrate and sulfate) is the best answer.