An electron transport system is an important feature of cellular respiratory pathways.In these pathways, humans and other aerobes obtain an electron acceptor from the atmosphere or an aqueous environment, but anaerobic prokaryotes use oxidized inorganic ions as electron acceptors.Which of the following is not an electron acceptor used by either aerobes or anaerobes?
A) Nitrate
B) Nitrite
C) Ammonia
D) Sulfate
E) Oxygen

Question

Quizplus · Accepted Answer

Ammonia is not an electron acceptor used by either aerobes or anaerobes. The other options, nitrate, nitrite, sulfate, and oxygen, are all electron acceptors used by either aerobes or anaerobes in cellular respiratory pathways.

An Electron Transport System Is an Important Feature of Cellular