Ch 35 - Plant Structure and Growth Chapter 35 Know basic...

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Growth Chapter 35 Know basic anatomy of shoot, root, and tissues Know anatomy of xylem, phloem and tissue types Understand basics of plant development Fig. 35.2 Root System 0. Anchor; absorb minerals, H 2 O; nutrient storage 1. Fibrous root in monocots vs. taproot in dicots 2. Root hairs increase surface area for water and nutrient absorption 3. Adventitious roots help prop up plants in sand dunes, etc. Fig. 35.4 Stems 0. Nodes alternating with internodes 1. Axillary buds vs. terminal buds (apical dominance) Modified Shoots 0. Stolon: “runner” for vegetative growth 1. Rhizome: horizontal underground stem 2. Tuber: end of rhizome specialized for storage 3. Bulb: vertical underground shoot Fig. 35.5 Fig. 35.6 Fig. 35.7 Tissue Systems 0. Dermal – single layer + cuticle protects underlying tissues; serves to minimize water loss 1. Vascular – phloem (involved in sugar transport) and xylem transport water and nutrients 2. Ground – pith and cortex important in metabolism
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This note was uploaded on 12/02/2009 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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Ch 35 - Plant Structure and Growth Chapter 35 Know basic...

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