Gen_Bio_II_study_guide_ch_35-S9th - • Explain how proton...

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Dr. Tyler General Biology II – Study Guide for Chapter 35 Define the following: Active transport Adhesion Antitranspirant Aphid stylets Apoplast Aquaporins Bulk flow Casparian strip Cohesion Companion cells Diffusion Endodermis Evaporative cooling Girdling Guard cells Guttation Loading Membrane potential Nutrients Osmosis Passive transport Phloem sap Plasmodesmata Pressure flow model Pressure potential (turgor p) Proton pump Root pressure Secondary active transport Sieve tube cells Sink Solute potential Source Stele Stomata Sucrose Sucrose-proton symport Symplast Symport Transfer cells Translocation Transpiration Transpiration-cohesion- tension mechanism Turgid Turgor pressure (pressure potential) Unloading Water potential Wilt Xylem Xylem sap Describe the process of osmosis in plants. How are water, osmotic and pressure potentials related? Describe how mineral ions are taken up and transported in plants.
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Unformatted text preview: • Explain how proton pumps are involved in ion transport in plants. • Contrast symplast and apoplast transport. How are these mechanisms involved in mineral and water uptake and transport into the stele? What is the role of the endoderm and the casparian strips. • How are water and minerals transported in the xylem? Explain the transpiration-cohesion-tension mechanism in detail. • Describe how guard cells regulate the opening and closing of stomata, in detail? How does this relate to water loss and CO2 uptake? • Describe, in detail, the pressure flow model of translocation in plants. What are the roles of sources and sinks (give examples)? • Explain how secondary active transport and sucrose-proton symport mechanisms are involved in translocation of phloem sap....
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