Q. $C_{4}$- plants differ from $C_{3}$-plants in respect to
A) Number of $CO_{2}$ molecules used
B) Substrate, which accept the $CO_{2}$ molecules
C) The final product
D) Number of ATP formed
Explanation
In $C_{3}$-plants, carbon dioxide combines with RuBP to form phosphoglyceric acid, on the other hand in $C_{4}$-plants, carbon dioxide is first picked up by phosphoenol pyruvate (PEP) to form oxaloacetic acid.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.