Multiple choice

Which of the following is an example of chemosynthetic bacteria?

  1. Purple bacteria

  2. Escherichia coli

  3. Cyanobacteria

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

Nitrobacter is genus of mostly rod-shaped, gram-negative, and chemoautotrophic bacteria. Nitrobacter plays an important role,  in nitrogen cycle by oxidizing nitrite,  into nitrate in soil.

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