Oxygen is not produced during photosynthesis by

36 2018 Photosynthesis in Higher PlantsAnoxygenic photosynthesis Easy
Oxygen is not produced during photosynthesis by
A $Cycas$
B $Nostoc$
C Green sulphur bacteria
D $Chara$

Explanation

Green sulphur bacteria use $H_2S$, not water, so no $O_2$ is released.

Detailed Solution

Green sulphur bacteria do not use $H_2O$ as the source of protons (electrons), therefore they do not evolve $O_2$. So oxygen is not produced by green sulphur bacteria.

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