Q. The $C_{4}$-plants are photosynthetically more efficient than $C_{3}$-plants because
A) The carbon dioxide compensation point is more
B) Carbon dioxide generated during photorespiration is trapped and recycled through PEP carboxylase
C) The carbon dioxide efflux is not prevented
D) They have more chloroplasts
Explanation
In $C_{4}$-plants, chloroplasts are found in both bundle sheath and mesophyll cells. Chloroplasts in bundle sheath cells are larger and does not contain grana, whereas chloroplasts in mesophyll cells are smaller and have grana.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.