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Q. Which one of the following organisms does not evolve oxygen during photosynthesis?

Photosynthesis in Higher Plants

Solution:

Chemosynthetic bacteria do not evolve oxygen during photosynthesis. While, blue-green algae, red algae and $C _{4}$ - plants take in $CO _{2}$ from the environment and release $O _{2}$ into the environment during photosynthesis.
$CO _{2}+ H _{2} O \longrightarrow C _{6} H _{12} O _{6}+ O _{2} \uparrow$