TOPIC 10 LEARNING OUTCOMES.docx

TOPIC 10 LEARNING OUTCOMES.docx - TOPIC 10 LEARNING...

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TOPIC 10 LEARNING OUTCOMES 1. Differences between vascular and non-vascular plants? a. Vascular: i. have roots, stems, leaves ii. have vascular tissue (has special cells for transport through plant) iii. can grow tall b. non-vascular i. lack of roots, stems, and leaves ii. do not have vascular tissue iii. water under soil isn’t reached and actively taken up, instead take in water by direct absorption through cell walls and the water moves from cell-cell by osmosis iv. cant grow tall 2. differences between gymnosperm and angiosperm a. gymnosperms: i. nonflowering ii. plant seeds not in ovule, naked seeds. iii. No leaves, usually needles iv. Wind pollination is most common b. Angiosperms i. Flowering plants ii. Mature seed surrounded by ovule (usually fruit) iii. Have flat, broad leaves that usually change color & die every autumn iv. Insect pollination most common v. More abundant than gymnosperms vi. Two types: eudicot & monocot 3. Pollination a. Process by which pollen is transferred from anther [male part] to stigma [female part] of plant, & enables fertilization & reproduction 4. Eudicot plant picture: node, internode, apical bud, axillary bud, petiole, taproot, leaf a. 5. Monocot plant picture: node, internode, apical bud, axillary bud, petiole, fibrous root, leaf
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TOPIC 10 LEARNING OUTCOMES a. 6. Important functions of root a. Anchoring plant b. Absorbing minerals & water (high SA) c. Storing organic nutrients (like starch) 7. Differences monocot/eudicot root system a. Eudicot= taproot system. One main vertical root that gives rise to some large lateral roots or branch roots b. Monocot= fibrous root system. Thin lateral roots no main root. 8. How do root systems work in general? a. Root hairs absorb. b. travel by symplastic route (by plasmodesmata) or apoplastic route (by cell walls & intercellular spaces) c. endodermis. Innermost layer of cells in root cortex. Selective passage of minerals from cortex into vascular cylinder (stele). d. Casparian strip in endodermal wall blocks apoplastic transfer & foces polar molecules to enter using symplastic 9. Differences monocot/eudicot xylem/phloem arrangements a. Eudicot= xylem makes star/cross & phloem between arms of star/cross b. Monocot= xylem & phloem make ring w core comprising of parenchyma cells (pith) 10. Differences monocot/eudicot stems a. Eudicot= vascular tissue consists of vascular bundles (xylem & phloem grouped together) arranged in ring. Has pith
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  • Spring '14
  • phloem, A., Xylem, Plant anatomy

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