BS 10-22 - October 22, 2007 BS 110 Plant Structure and...

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October 22, 2007 BS 110 Plant Structure and Function - Made up of 2 systems: 1. Root System – primary root and accessory root 2. Shoot System – stems, leaves, and reproductive structures Roots Functions - anchor the shoot system - absorb materials - store materials Structure - Primary Boost: Taproot (eudicots) System, Fibroos (monocots) Root System - Primary roots is most Stems Ex) trunks, branches, vines, rhizomes (ferns), runners (strawberries) - support and distribute leaves - divided into nodes: areas of the stem where new growth occurs (areas between nodes are called internodes) - looking from outside to inside of stem: - 1 st layer includes cuticle, epidermis, cortex - cortex made up of 2 types of cells (parenchyma and sclerenchyma cells) - parenchyma has chloroplasts and involved in storage of materials and provide support to the stem -Sclerenchyma provide support and strength to the cells - Phloem/Xylem pith - pith (centrally located cells that store materials Leaves - factories of photosynthesis
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This note was uploaded on 04/20/2008 for the course BS 110 taught by Professor S.lawrence during the Fall '07 term at Michigan State University.

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BS 10-22 - October 22, 2007 BS 110 Plant Structure and...

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