Q. PEP carboxylase I. is involved in atleast some $CO_{2}$ fixation in both $C_{3}$ and $C_{4}$-plants II. Catalyses the reaction of fixing $CO_{2}$ into pyruvic acid in bundle sheath cells III. is capable of fixing $CO_{2}$ more efficiently at lower atmospheric $CO_{2}$ concentration than RuBP carboxylase Select the correct option
A) I and II
B) II and III
C) I, II and III
D) Only III
Explanation
PEP carboxylase or pepco is the special enzyme, which is found in the mesophyll cells of $C_{4}$-plant. Pepco is capable of fixing $CO_{2}$ more efficiently in $C_{4}$-plant than Rubisco, even in low $CO_{2}$ concentration
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.