Multiple choice

Which of the following structures are specialised nitrogen fixing cells?

  1. Akinetes

  2. Parthenospores

  3. Heterocysts

  4. Aplanospores

  5. Trichogyne

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Heterocysts refer to the specialized cells found in certain filamentous blue green algae that are capable of fixing atmospheric nitrogen.