What is Nitrification?

What is Nitrification?

• A. The process of releasing nitrogen gas into the atmosphere
• B. The process of converting nitrates into nitrogen gas
• C. The process of combining nitrogen with hydrogen to form ammonia
• D. The process of assimilating phosphorus in soil

Answer: (C)

Nitrification is a crucial step in the nitrogen cycle, defined as the biological process of converting ammonia into nitrates and nitrites, which can then be utilized by plants. This two-step process is carried out by specific bacteria in the soil. In the first step, ammonia (NH₃) is oxidized to nitrites (NO₂⁻) by bacteria such as Nitrosomonas. In the second step, these nitrites are further oxidized to nitrates (NO₃⁻) by other bacteria, such as Nitrobacter. Nitrification enables plants to absorb nitrogen in a form they can use for growth and development. While the other options refer to different nitrogen-related processes or different nutrient cycles, they do not correctly describe nitrification. This process specifically involves the transformation of nitrogen into a form that can be assimilated by living organisms, making it integral to maintaining the ecosystem's nitrogen balance.

Nitrification is a crucial step in the nitrogen cycle, defined as the biological process of converting ammonia into nitrates and nitrites, which can then be utilized by plants. This two-step process is carried out by specific bacteria in the soil.

In the first step, ammonia (NH₃) is oxidized to nitrites (NO₂⁻) by bacteria such as Nitrosomonas. In the second step, these nitrites are further oxidized to nitrates (NO₃⁻) by other bacteria, such as Nitrobacter. Nitrification enables plants to absorb nitrogen in a form they can use for growth and development.

While the other options refer to different nitrogen-related processes or different nutrient cycles, they do not correctly describe nitrification. This process specifically involves the transformation of nitrogen into a form that can be assimilated by living organisms, making it integral to maintaining the ecosystem's nitrogen balance.