All of the Following Are Mechanisms That Provide an Anoxic

question 53

Multiple Choice

All of the following are mechanisms that provide an anoxic environment for nitrogenase activity in cyanobacteria EXCEPT:

• A) formation of heterocysts
• B) formation of chlorosomes
• C) temporal separation of photosynthesis and nitrogen fixation
• D) formation of large aggregates of cells
• E) symbiotic associations with plants

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