Quiz on Anaerobic Respiration and Nitrate Reduction

What is the final electron acceptor in anaerobic respiration?

• Carbon Dioxide

• Oxygen

• Sulfate

• Nitrate

Which process occurs without an external electron acceptor?

• Aerobic respiration

• Dissimilatory nitrate reduction

• Anaerobic respiration

• Fermentation

What is produced during glycolysis?

• NADH

• Both NADH and ATP

• FADH2

• ATP

Which of the following is a characteristic of anaerobic respiration?

• Only occurs in bacteria

• Requires oxygen

• Utilizes an electron transport chain

• Higher ATP yield than aerobic respiration

Which enzyme reduces nitrate to nitrite?

• Nitrite reductase

• Nitrate reductase

• Nitrous oxide reductase

• Nitric oxide reductase

What is the role of the electron transport chain in anaerobic respiration?

• To produce glucose

• To generate a proton motive force

• To synthesize NADH

• To oxidize pyruvate

What type of bacteria perform denitrification?

• Obligate aerobes

• Facultative anaerobes

• Obligate anaerobes

• Aerobic bacteria

Which process conserves bioavailable nitrogen in the ecosystem?

• Aerobic respiration

• Dissimilatory nitrate reduction to ammonium

• Denitrification

• Fermentation

What is the final product of DNRA?

• Nitrogen gas

• Nitrate

• Nitrite

• Ammonium

Which of the following is a characteristic of fermentation?

• Produces more ATP than respiration

• Utilizes an electron transport chain

• Requires oxygen

• Uses organic molecules as both electron donors and acceptors