Mineral NutritionHard

Question

Which one of the following categories of organisms do not evolve oxygen during photosynthesis?

Options

A.Red algae
B.photosynthetic bacteria
C.C4 plants with Kranz anatomy Blue green algae
D.Blue green algae

Solution

Photosynthetic bacteria do not use H2O as electron donor but some other compound like Fe2+, H2S.
In Photosynthetic splitting of water and liberation of O2 by chlorophyll in presence of light and hydrogen acceptor is called photolysis of water.
    H2O ⇋ 2H+ + 2e- + O2

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