Q. In $C_{4}$-plants, the bundle sheath cells
A) Have thin walls to facilitate gaseous exchange
B) Have large intercellular spaces
C) Are rich in PEP carboxylase
D) Have a high density of chloroplasts
Explanation
In the leaves of $C_{4}$-plants, the vascular bundles are surrounded by bundle sheath of larger parenchymatous cells, which in turn are surrounded by mesophyll cells. Bundle sheath cells have a high density of larger chloroplasts which always lack grana, whereas chloroplasts of mesophyll cells are smaller.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.