Ammonium nitrate (NH4NO3) is a common nitrogen fertilizer, and might be used in

Question

Ammonium nitrate (NH4NO3) is a common nitrogen fertilizer, and might be used in landscaping around the pond. You add this to sample and observe that the acetic acid, ethanol, and lactic acid are rapidly consumed, and CO2 and N2 are produced. Based on these data, which of the following statements are true? (more then one could be correct)

a. some organisms are capable of respiration

b. The CO2 produced is likely a byproduct of organisms using the citric acid cycle

c. some of the prokaryotes can use ammonia (NH3) are a terminal electron acceptor.

d. Some of prokaryotes can use nitrate (NO3-) as a terminal electron acceptor.

e. Some of the prokaryotes can convert nitrate (NO3-) to N2 and O2, and are using O2 as their terminal electron acceptor.

Explanation / Answer

d. Some of prokaryotes can use nitrate (NO3-) as a terminal electron acceptor.

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