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Plant Structure and Growth

Plant Structure and Growth - Plant Structure Growth The...

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Plant Structure & Growth v Plants, like multicellular animals § have organs composed of different tissues § which are in turn composed of cells v The plant body has a hierarchy of organs, tissues, and cells
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Ø Draw nutrients from two very different environments: Basic Morphology of Vascular Plants Ø Reflects their evolutionary history as terrestrial organisms below-ground above-ground
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Three Basic Organs Roots, Stems and Leaves Organized into Two Systems: Shoot system Root system (absorb light & CO2) (absorb H2O & minerals)
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A Root: v organ that anchors the vascular plant 1. Tap root system (Gymnosperms and Angiosperms-Eudicots or dicots) 2. Fibrous root system (Angiosperms-Monocots) v absorbs minerals and water v Eudicots often stores organic nutrients ROOT SYSTEM
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The absorption of water and minerals occurs near the root tips, where vast numbers of tiny root hairs increase the surface area of the root In most plants
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SHOOT SYSTEM (STEMS and BUDS) v A stem is an organ consisting of An alternating system of nodes , the points at which leaves are attached Internodes , the stem segments between nodes v TWO types of buds : 1.
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