Which of the Following Statements About Nitrogen Fixation in Root

question 106

Multiple Choice

Which of the following statements about nitrogen fixation in root nodules is true?

• A) The plant contributes the nitrogenase enzyme.
• B) The process is relatively inexpensive in terms of ATP costs.
• C) Leghemoglobin helps maintain a low O₂ concentration within the nodule.
• D) The process tends to deplete nitrogen compounds in the soil.

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