Using Nitrogenase to Reduce N₂ Should Require 2 ATP to Be

question 23

Multiple Choice

Using nitrogenase to reduce N₂ should require 2 ATP to be invested,but it actually takes 16 ATP.Why?

• A) It is harder to break the nitrogen triple bond than expected and requires more energy input.
• B) Extra energy is required to produce H_2.
• C) To regenerate the MoFe protein requires the input of ATP.
• D) To keep the nitrogenase complex associated requires an input of 4 ATP.

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