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7 Transport - Intro - Lecture 7 Correcty answer these 10...

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H 2 O product of photosynthesis (sucrose) H 2 O vapor H 2 O vapor H 2 O mineral ions Transport in plants Lecture: 7 BioSci 1C Apr.9.07 Correcty answer these 10 questions as a group by the end of lecture: 1. define solute. Name one solute that might be found in xylem and one solute that might me found in phloem. 2. Explain why plants die without water. 3. draw a diagram di erentiating between apoplastic and symplastic pathways water can take from the soil to the xylem 4. in what way could an entire plant be considered a single cell? 5. How does water "provide strength and structure to herbaceous organs"? 6. Would a plant with hypertonic cells wilt? Why, or why not? 7. 7. Which has a higher water potential: a turgid cell or a plasmolyzed cell. 8. What conditions create a water potential of zero? 9. How can growing roots break up a road or sidewalk? 10. describe the tallest plant you've ever seen.
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H 2 O product of photosynthesis (sucrose) H 2 O vapor H 2 O vapor H 2 O mineral ions Imported and exported Molecules 1-Water 2-Various solutes the black arrows
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H 2 O product of photosynthesis (sucrose) H 2 O vapor H 2 O vapor H 2 O mineral ions Solutes Solutes are mineral ions or organic molecules such as sugars Molecules dissolved in water
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Transport and Life Plants like animals need to transport substances from one organ to another Plants need supply of water in order to: – Maintain structures – Photosynthesis – Growth – Die if dehydrated
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Transport Replacement water comes from soil through roots Need transport system to get water from soil into roots and up to leaves In addition to water, plants require mineral nutrients – Must have system to transport minerals from roots to meristematic regions
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