Select the correct pair.
Correct Answer :
Cells of medullary rays that form part of cambial ring - Interfascicular cambium
Solution :
In woody dicot stems the vascular cambium is not a single continuous sheet. It is formed by two types of cambial cells:
1. Fascicular cambium – the cambial cells that lie directly inside the vascular bundles (xylem and phloem).
2. Interfascicular cambium – the cambial cells that develop from the parenchyma of the medullary rays, which are the radially oriented strips of parenchyma that connect the pith to the cortex.
The medullary rays contain parenchyma cells that, when they become meristematic, give rise to the interfascicular cambium. This cambium then joins with the fascicular cambium to create a complete cambial ring around the stem, allowing secondary growth.
Therefore, the description “Cells of medullary rays that form part of cambial ring” correctly matches the term Interfascicular cambium.
Access expert-curated educational resources and study materials—completely free.
Create, conduct, and manage professional online assessments with Mindyard. Perfect for teachers and institutes.
Copyright © 2026 Mindyard. All Rights Reserved.
 Set - 3-1782888548748.webp)
