Q. During secondary growth of plants, stem phellogen cuts of cells on both sides. The outer cells gets differentiated into …A… and the inner cells gets differentiated into …B… cortex Choose the correct combination of A and B with reference to above statement
A) A-cork; B-phellem
B) A-secondary cortex; B-phelloderm
C) A-secondary cortex; B-primary cortex
D) A-cork/phellem; B-secondary cortex
Explanation
Phellogen cuts off the cells on both sides and form an outer imprevious layer, cork and an inner parenchymatous layer, phelloderm
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.