Cyanobacteria Are Obviously Capable of Photosynthesis,but Many of Them Also

question 22

Multiple Choice

Cyanobacteria are obviously capable of photosynthesis,but many of them also convert nitrogen gas into reduced forms of nitrogen (such as ammonia) that can be used by cells in the synthesis of nitrogen-containing organic compounds,including amino acids and nucleotides.This process is called ______.

• A)nitrogen fixation
• B)denitrification
• C)nitrification
• D)respiration
• E)ammoniation

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