Several experiments have been performed to test the cohesion-tension theory as to how water moves through a plants xylem tissue. One such experiment measured minute diameter changes in the trunk on a daily basis. What changes in trunk diameter might you predict this experiment would show over a 24-hour period? Would the diameter changes be equal throughout the plant? Explain.. 3. Some plants transport sugar to companion cells using the symplastic pathway through plasmodesmata (passive loaders). In other plants, the companion cells lack plasmodesmata and sugars must be imported by using H+-Sucrose-cotransporters (active loaders).

Several experiments have been performed to test the cohesion-tension theory as to how water moves through a plants xylem tissue. One such experiment measured minute diameter changes in the trunk on a daily basis. What changes in trunk diameter might you predict this experiment would show over a 24-hour period? Would the diameter changes be equal throughout the plant? Explain.. 3. Some plants transport sugar to companion cells using the symplastic pathway through plasmodesmata (passive loaders). In other plants, the companion cells lack plasmodesmata and sugars must be imported by using H+-Sucrose-cotransporters (active loaders).

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter34: Transport In Plants

Section: Chapter Questions

Problem 5TYK

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