The final product in biochemical oxidation of ammonia yields:

In biochemical oxidation of ammonia, the process typically involves the conversion of ammonia (NH3) through a series of microbial-mediated steps resulting in the formation of nitrates (NO3-). This process is part of the nitrogen cycle and involves several key reactions facilitated by different microorganisms.

Initially, ammonia is oxidized to nitrite (NO2-) by ammonia-oxidizing bacteria, a process known as nitrification. Then, the nitrite produced is further oxidized to nitrate by nitrite-oxidizing bacteria. The final product of this biochemical oxidation process is thus nitrate, making this answer the most accurate representation of the outcome of this biochemical process. Nitrate serves as a key nutrient in many ecosystems, particularly in the context of soil health and agricultural practices, highlighting its significance in environmental science and health.

Understanding this sequence underscores the role of microorganisms in nitrogen cycling and the importance of each step in maintaining ecological balance and soil fertility.