The Enzymatic Machinery to Fix Atmospheric N₂ into NH₄⁺ Is

question 42

Multiple Choice

The enzymatic machinery to fix atmospheric N₂ into NH₄⁺ is:

• A) a means of producing ATP when excess N₂ is available.
• B) composed of two key proteins, each containing iron.
• C) relatively stable when exposed to O₂.
• D) specific to plant cells.
• E) unaffected by the supply of electrons.