Q. Narrow bands of parenchymatous tissue which passes through the secondary xylem and phloem radially are called
A) Pith
B) Stele
C) Primary medullary rays
D) Secondary medullary rays
Explanation
Secondary medullary rays. The primary xylem is in the centre of the stem, while primary phloem is pushed outward and crushed into the cortex by the significant activity of vascular cambium. While the secondary phloem differentiates from the cells that divide towards the outside of the stem
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.