Multiple Choice
Bacteroids must be able to respire to reduce N2 gas.Yet, nitrogenase is inhibited by O2.How is this conflict resolved in a nodule?
A) Nitrogenase in a nodule is not inhibited by oxygen.
B) The bacteroid secretes a protein that binds oxygen.
C) The plant expresses a protein that acts as an oxygen buffer in nodules.
D) The concentration of O2 needed for respiration by bacteroids is lower than that required to inactivate nitrogenase.
E) The plant expresses a protein that acts as an oxygen buffer in nodules and the concentration of O2 needed for respiration by bacteroids is lower than that required to inactivate nitrogenase.
Correct Answer:
Verified
Correct Answer:
Verified
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