Question

In C4 plants number of carboxylation taking place to form one sucrose is
a)12 b)24 c)36 d)48

Answer 1

For the synthesis of one glucose molecule, 30 ATPs are consumed during C4 pathway . And also 12 NADPH2 are required.

12 NADPH2 (= 36 ATP) + 30 ATP = 66 ATP needed for production of 1 hexose (Glucose) in C4-plants.

So your Answer is 12.