Questions: Nitrogen fixation is the process by which some prokaryotes convert atmospheric nitrogen into and then incorporating that into cellular material.

Nitrogen fixation is the process by which some prokaryotes convert atmospheric nitrogen into ammonia and then incorporate that into cellular material.

Explanation:

• Nitrogen fixation is a crucial biological process carried out by certain prokaryotes, including some bacteria and archaea. These organisms have the ability to convert atmospheric nitrogen (N₂), which is inert and not directly usable by most living organisms, into ammonia (NH₃).
• Ammonia can then be assimilated into organic compounds, such as amino acids, which are essential for building cellular material.
• This process is vital for the nitrogen cycle, as it makes nitrogen accessible to plants, which in turn supports the entire food web.