Denitrifying Bacteria and Archaea are chemoorganotrophs that grow by anaerobic respiration using ________ and producing ________

a. nitrate (NO3–) or nitrite (NO2–) / dinitrogen gas (N2) or nitrous oxide (NO)
b. dinitrogen gas (N2) or nitrous oxide (NO) / nitrate (NO3–) or nitrite (NO2–)
c. dinitrogen gas (N2) or nitrous oxide (NO) / ammonia (NH3) or CO2
d. nitrate (NO3–) or nitrite (NO2–) / ammonia (NH3) or water


Answer: A

Biology & Microbiology

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