In leaves of C_4 plants malic acid synthesis during CO_2 fixation occurs in

NEET 2008 Biology question

In leaves of C plants malic acid synthesis during CO fixation occurs in

(1)Guard cells
(2)Epidermal cells
(3)Mesophyll cellsCorrect
(4)Bundle sheath

Answer: (3)

Solution

In C plants, atmospheric is first fixed in the mesophyll cells by PEP carboxylase, forming oxaloacetic acid, which is reduced to malic acid (or converted to aspartic acid); this is then transported to the bundle sheath cells where it is

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Question ID VK-090070