Explain What Self-Expansion Is, and Provide an Example

question 70

Essay

Explain what self-expansion is, and provide an example.

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Definitions:

Pith

The innermost tissue in the stems and roots of many herbaceous plants; primarily a storage tissue.

Vascular Cambium

A layer of meristematic tissue in plants that produces vascular tissues, contributing to the thickness growth of stems and roots.

Secondary Xylem

The part of the xylem that is formed after the plant's initial growth, contributing to the thickening of the plant stem.

Primary Phloem

The part of the plant's vascular system that conducts sugars and other metabolic products downward from the leaves.