Photosynthesis Question 6
6. Anoxygenic photosynthesis is characteristic of:
(a) Rhodospirillum
(b) Spirogyra
(c) Chlamydomonas
(d) Ulva
Show Answer
Answer : a
Hints & Solution
(a) In Rhodospirillum, electron donor is organic compound during photosynthesis. It helps an organisms to trap light energy and store it as chemical energy. Rhodospirillum bacteria are Gram-negative, motile, spiral-shaped bacteria. They can be grown under many different types of conditions including aerobic or anaerobic environments. Anaerobically, the bacterium uses fermentation or photosynthesis in order to produce energy as well as photoautotrophic growth.
