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Understanding Wood's Structure

Wood is a porous, fibrous structural tissue found in the stems and roots of trees and woody plants. It is composed of cellulose fibers that provide tension strength bonded together with lignin that provides compression resistance. In trees, wood performs important functions of structure, support, and transport of water and nutrients between the roots and leaves.

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47 views1 page

Understanding Wood's Structure

Wood is a porous, fibrous structural tissue found in the stems and roots of trees and woody plants. It is composed of cellulose fibers that provide tension strength bonded together with lignin that provides compression resistance. In trees, wood performs important functions of structure, support, and transport of water and nutrients between the roots and leaves.

Uploaded by

issam smaili
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Wood is a porous and fibrous structural tissue found in the stems and roots of trees and

other woody plants. It is an organic material – a natural composite of cellulose fibers that are strong


in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined
as only the secondary xylem in the stems of trees,[1] or it is defined more broadly to include the same
type of tissue elsewhere such as in the roots of trees or shrubs.[citation needed] In a living tree it performs a
support function, enabling woody plants to grow large or to stand up by themselves. It also conveys
water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer
to other plant materials with comparable properties, and to material engineered from wood, or wood
chips or fiber.

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