Home Biology Biological Classification Introduction and Kingdom–Monera Oxygen is not produced during photosynthesis…
Biology Biological Classification Introduction and Kingdom–Monera Single Correct MCQ
Published on: August 12, 2026

Oxygen is not produced during photosynthesis by

A
Cycas
B
Nostoc
C
Green sulphur bacteria
D
Chara

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Verified by Experts
The correct answer is:
C

Green sulphur bacteria perform anoxygenic photosynthesis, meaning they do not release oxygen during photosynthesis. They use substances like hydrogen sulphide (H₂S) instead of water as the hydrogen donor.

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