An Electron Transport System Is an Important Feature of Cellular

question 252

Multiple Choice

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

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