Photosynthesis Question 1
1. Oxygen is not produced during photosynthesis by
(a) Green sulphur bacteria
(b) Nostoc
(c) Chara
(d) Cycas
Show Answer
Answer : a
Hints & Solution
(a) Green sulphur bacteria do not use $H_2 O$ as source of proton, therefore they do not evolve $O_2$.