Multiple choice

Biological nitrogen fixation (BNF) occurs when atmospheric nitrogen is converted to ammonia. Which of the following organisms is supposed to perform almost half of the nitrogen fixation in marine systems on a global scale?

  1. Gloeobacter

  2. Johannesbaptistia

  3. Nostoc

  4. Trichodesmium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Trichodesmium belongs to the genus of filamentous cyanobacteria. It performs almost half of the nitrogen fixation in marine systems on a global scale.

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