Water Carbon Compromise

Water Carbon Compromise - with less irrigation). 1) One...

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4/7/11 Pressure - Flow Hypothesis Phloem loading near HIGH TURGOR PRESSURE at source Phloem unloading near sink C H2O Potential LOW TURGOR PRESSURE at sink Fig
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4/7/11 How Are Sugars Concentrated in Sieve-Tube Members at Diffusion Also, may require ATP
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4/7/11 SOUR CE COMPANION CELL Fig 37.21
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4/7/11 Phloem Unloading at Sink Diffusion into Sink – then use ATP to maintain concentration gradient
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4/7/11 Phloem unloading in Leaf (PASSIVE) PASSIVE TRANSPORT Fig 37.23
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4/7/11 Phloem unloading into Roots Use ATP to Store Sugar in Vacuole of Root Cell
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4/7/11 Control of Stomata (Chapter 39) Trade-off between CO2 IN and H2O OUT Water (Cohension-Tension Theory) and Sugar (Translocation) depend on stomata
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4/7/11
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4/7/11 Sonoran Desert
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4/7/11 Irrigation for agriculture is destroying desert
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4/7/11 Rice – C3 plant Given what we know about plant structure and function, modify this crop plant to make it less water sensitive (able to survive in a desert
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Unformatted text preview: with less irrigation). 1) One Structural / Morphological Modification 4/7/11 CO2 2. Photosynthesis 3. Water uptake/transport 1. Plant Structure 4. Plants and Global Change H2O 4/7/11 Global changes in atmospheric CO2 over time Click to edit Master subtitle style 4/7/11 Is the CO2 rise good for the environment? 4/7/11 Concluding Paragraph: From Petition Project 4/7/11 Figure 24: Calculated (1,2) growth rate enhancement of wheat, young orange trees, and very young pine trees already taking place as a result of atmospheric enrichment by CO 2 at from 1885 to 2007 (a), and expected as result of atmospheric enrichment by CO 2 to a level of 600 ppm (b). Data from Petition Project 4/7/11 What are the assumptions of these studies describing increased plant 4/7/11 Science Scientific Studies 4/7/11 Science 4/7/11 Science 4/7/11 Science 4/7/11 350 700 CO2 Levels...
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This note was uploaded on 04/06/2011 for the course BIO 101 taught by Professor Freeman during the Spring '11 term at Union.

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Water Carbon Compromise - with less irrigation). 1) One...

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