What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 5, Problem 8SA
Summary Introduction
To review:
The problem created by the closing of stomata while conserving water in the plant.
Introduction:
The stomata are the pores through which evaporation as well as gas exchange occur.
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-Thank you!
Describe how water and minerals move in xylem. Why is water and mineral movement in xylem unidirectional?
Chapter 5 Solutions
What Is Life? A Guide to Biology with Physiology
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- Terrestrial plants have stomata on the surface of their leaves. A single stoma is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in the plant?arrow_forwardThe xylem cell has a water potential of -45 MPa and the mesophyll cell of the leaf has a water potential of -57MPa. Which way does the water move?arrow_forwardWrite in the boxes on the image to describe the events that are occurring in each step of xylem transport. Be sure to use the terms: transpiration, tension, cohesion, osmosis, and stomata.arrow_forward
- Growers often wrap potted plants in plastic sleeves prior to shipping. If plants remain in these sleeves too long, their leaves curl and fall off. Imagine you are working at a garden center and have been asked to make a presentation to a local garden club.Question: Explain the processes that may cause the leaves to drop and fall.arrow_forwardIf the tension in the xylem vessel becomes too great, gas bubbles will form. Explain this phenomenon countermeasures by plant to address this issue.arrow_forwardChoose the statements that apply to transpiration in the cohesion-tension theory. (Check all that apply) Check All That Apply The H-bonds in water allow for cohesion. Water pressure builds in roots to drive water up the plant. Exposed water in leaves evaporates into drier air. Water forms a continuous stream from leaf into the root. In addition to water, heat is lost cooling the plant during transpiration.arrow_forward
- There are four (4) types of water movement in plants. Provide three (3) types of water movement. *arrow_forwardA mutation causes the vascular cambium in a plant to stop working. How does this impact cellular respiration? The stomata would remain open and release water vapor. The guard cells would remain closed and store water vapor. The leaves would not be able to release glucose for energy production. The xylem would not be able to transport water to the rest of the plant.arrow_forwardWhat are the effects of sulphur dioxide stress (exposed to a excesssive amount of SO2) on plants ? With regards to: >Stomata opeing >Chlorophyll content >Number of leavesarrow_forward
- The stomata are tiny openings in leaves that, when open, allow water to evaporate. In what circumstances do you expect that stomata to be closed?arrow_forwardDrag and drop the labels onto the diagram of water and mineral transport through the xylem in plants. Cholces may be used more than once or not at all. Transpiration Photosynthetic cells This will close when water is scarce. Absorption of water by root Cortex cells in root Phloem URALarrow_forwardDescribe how the water potential of a leaf changes throughout the course of a 24-hour period. What is driving this change? How does the water potential of this leaf compare to the water potential of a root in the same plant during the same period? How does it compare to the soil underneath the plant? Please fast and properly explain.arrow_forward
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