question_answer

                In sugarcane plant \[^{14}C{{O}_{2}}\] is fixed in a malic acid, in which the enzyme that fixes \[C{{O}_{2}}\] is:              

A)                 ribulose phosphate kinase                

B)                 fructose phosphatase

C)                 ribulose Diphosphate carboxylase                  

D)                 phosphoenol pyruvic acid carboxylase

Correct Answer: D

Solution :

                In \[{{C}_{4}}\] plants, \[C{{O}_{2}}\] is picked up by phosphoenolpyruvate (PEP) and the reaction being catalyzed by PEP carboxylase.