Question

Exarch xylem is found in (a) Root (b) Stem (c) Leaf (d) Rachis

   Exarch xylem is found in
(a) Root
(b) Stem
(c) Leaf
(d) Rachis

Objective Biology for NEET

Objective Biology for NEET

Rajiv Vijay 1st Edition

Chapter 6, Problem 165

Instant Answer

Solved by Expert Parvati Devi

11/15/2021

Step 1

The term "exarch" refers to the maturation of xylem cells from the periphery to the center. Show more…

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Exarch xylem is found in (a) Root (b) Stem (c) Leaf (d) Rachis

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Key Concepts

Root Anatomy

Roots are specialized plant organs primarily involved in water and nutrient uptake. They often exhibit an exarch xylem configuration, where the pattern of vascular tissue development is arranged to support efficient conduction from the soil to the rest of the plant, reflecting the root's functional adaptation to its environment.

Exarch Xylem

Exarch xylem is a type of xylem maturation pattern in which the protoxylem develops at the peripheral region of the vascular strand, with secondary metaxylem forming towards the center. This pattern reflects the outward-to-inward progression of xylem development and is typical of many roots, where the arrangement facilitates effective water and mineral conduction from the soil.

Xylem and Vascular Tissue Organization

Xylem is one of the main components of the plant vascular system responsible for water and mineral transport from the roots to the rest of the plant. The organization and pattern of xylem development, such as exarch versus endarch, are key aspects of plant anatomy that determine how a plant adapts its structure for efficient transport and support.

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