35-stemoutl - ψ 1) ψ P 2) ψ S 3) distilled water 4)...

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Biology 3: Stems (Ch 35) ©2011 copyright Marta D. de Jesus I. External structure A. buds B. nodes vs. internodes C. scars D. lenticels II. Internal structure (non-woody) A. eudicot B. monocot III. Internal structure (woody): eudicots only A. vascular cambium B. division mechanism C. xylem = wood 1. springwood vs. summerwood dendrochronology 2. heartwood vs. sapwood 3. rays 4. hardwood vs. softwood D. phloem E. periderm IV. Xylem A. ways of moving water up
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1. due to air pressure 2. positive pressure from roots 3. cohesion-tension theory water potential 2 components to this number
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Unformatted text preview: ψ 1) ψ P 2) ψ S 3) distilled water 4) plant cells 4. at the cellular level a. plant cell in a sucrose solution b. plant cell in distilled water turgor pressure (all these numbers are measurable by plant physiologists) c. vacuolar membrane = tonoplast 5. at the whole plant level a. in soil b. air at 90% air at 50% humidity c. theoretically possible d. cohesion V. Phloem pressure - flow hypothesis source sink VI. Variations A. bulb B. corm C. rhizome D. tuber E. thorns F. PS stems G. asexual reproduction stolon = runner sucker...
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This note was uploaded on 01/17/2012 for the course BIOL V04 taught by Professor De-jesus,m during the Fall '08 term at Ventura College.

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35-stemoutl - ψ 1) ψ P 2) ψ S 3) distilled water 4)...

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