Question

Is Rhodospirillum a free-living aerobic entity?

Answer 1

Rhodospirillum:

1. Rhodospirillum is a gram-negative organism of size 800-1000 nanometers.
2. It is a facultative anaerobe, however, it can use oxygen when kept under aerobic conditions.
3. It uses bacteriochlorophylls for photosynthesis.
4. It is a free-living nitrogen-fixing bacteria.