During $C_{4}$ pathway,decarboxylation of $C_{4}$ acid and regeneration of PEP occurs respectively in:-

bundle sheath cell and bundle sheath cell

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bundle sheath cell and mesophyll cell

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mesophyll cell and bundle sheath cell

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mesophyll cell and mesophyll cell

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Solution

The correct option is B bundle sheath cell and mesophyll cell
C4 acid enters the bundle sheath cell and is converted into pyruvate by decarboxylation. This pyruvate enters into mesophyll cell and with the help of ATP, it is converted into PEP. So the correct option is 'bundle sheath cell and mesophyll cell'

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