L3_key_1106S19.docx - BIOL 1106 Classwork Spring 2019 Lesson 3 Transport Through the Plant Body(20 points \u2013 Key This graded assignment is subject to

L3_key_1106S19.docx - BIOL 1106 Classwork Spring 2019...

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BIOL 1106 Classwork Spring 2019 Lesson 3: Transport Through the Pl ant Body (20 points) – Key This graded assignment is subject to the Virginia Tech Honor Code. Sharing or posting any content from this assignment, or using such shared or posted assignment content to answer assignment questions, is a violation of the Virginia Tech Honor Code. Names and emails: 1. 2. 3. Lesson Objectives: 1. Calculate the water potential of a cell and predict the direction of water movement based on water potential. 3. Explain the cohesion-tension theory of water transport in the xylem. 4. Describe the mechanism of stomatal opening and closing 5. Explain the pressure-flow hypothesis of fluid transport in the phloem. S1. Apply scientific reasoning to biological problems S3. Interpret and draw conclusions from scientific data S4. Apply basic quantitative methods to biological problems Part I: Water Potential (3.5 pts; 0.5 pts per cell) Fill in the missing data in the table and predict the direction of water movement based on water potentials. Solute potential of cell Pressure potential of cell Water potential of cell Solute potential of solution into which the cell is placed (in an open container) Direction of water movement (into or out of cell, or no net movement?) -0.7 MPa 0 MPa 1. -0.7 MPa -0.9 MPa 2. out of cell -0.7 MPa 0 MPa -0.7 MPa 0 MPa 3. into cell -0.35 MPa 0.2 MPa 4. -0.15 -0.15 MPa 5. no net movement -0.1 MPa 6. 0.05 MPa -0.05 MPa -0.1 MPa 7. out of cell This graded assignment is subject to the Virginia Tech Honor Code. Sharing or posting any content
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  • Spring '08
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