The center of a herbaceous dicot root is composed of whereas...

The center of a herbaceous dicot root is composed of whereas the center of _________ a monocot root is composed of _________
(a) pith; cortex (b) xylem; phloem
(c) phloem; xylem
(d) xylem; pith (e) pith; xylem

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Key Concepts

Vascular Arrangement in Dicot Roots

In herbaceous dicot roots, the vascular tissue is arranged with the xylem situated at the center and phloem positioned peripherally, typically in an alternating star-shaped pattern. This configuration facilitates efficient water and nutrient transport by centralizing the xylem while the phloem surrounds it, contributing to the overall structural and functional differentiation of the root system.

Vascular Arrangement in Monocot Roots

Monocot roots exhibit a different arrangement where the vascular bundles are organized in a ring around a central region composed of pith, a non-vascular ground tissue. The presence of pith at the center, surrounded by scattered vascular bundles, distinguishes monocot roots from the centralized xylem found in dicot roots, influencing both the mechanical support and the transport pathways within the root.

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