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 biphosphate 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 be PEP carboxylase.