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Photosynthesis in Higher Plants
In the leaves of C4 plants, malic acid formation during CO2 fixation occurs in the cells of
mesophyll
bundle sheath
phloem
epidermis
A.
mesophyll
The oxalic acid is reduced to malic acid in mesophyll cells, from chloroplast of mesophyll cells the malic acid is transferred to the chloroplast of bundle sheath cells where it is decarboxylated to form CO2 and pyruvic acid.
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