Question

The processes of nitrification and nitrate assimilation are

• A. oxidation and reduction respectively
• B. reduction and oxidation respectively
• C. both are oxidation
• D. both are reduction

Answer 1

The correct option is A oxidation and reduction respectively

Oxidation often involves the gain of oxygen. Nitrification is the process by which ammonia is converted to nitrites $\left(N{O}_2^{-}\right)$ and then nitrates $\left(N{O}_3^{-}\right)$.

Reduction often means the loss of oxygen. Nitrate assimilation is the biological processes in which nitrate is converted to ammonia, which can then be incorporated into organic compounds.