Multiple choice

Which of the following is an example of iron-oxidising chemolithotrophic bacteria?

  1. Gallionella ferruginea

  2. Alcaligenes eutrophus

  3. Rhodospirillum rubrum

  4. Nitrosomonas europaea

  5. None of the above

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A Correct answer
Explanation

Gallionella ferruginea is an iron-oxidising chemolithotrophic bacterium. It oxidises Fe++ as a source of energy for lithoautotrophic growth.