Q. Which of the three sub-zones of cortex of dicot stem performs the function of providing mechanical strength to young stem?
A) Hypodermis
B) Cortical layers
C) Endodermis
D) Both (a) and (c)
Explanation
Hypodermis consists of a few layers of collenchymatous cells just below the epidermis, which provides mechanical strength to the young stem. Cortical layers below the hypodermis consists of rounded thin-walled parenchymatous cells with conspicuous intercellular spaces
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.