Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 29.2, Problem 2CC
How would a reduction in the number of aquaporin channels affect a plant cell's ability to adjust to new osmotic conditions?
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Students have asked these similar questions
1) A plant cell with a pressure potential of 5 bars and an osmotic potential of -9 bars is in equilibrium with a surrounding solution that is open to the air. What is the water potential of the surrounding solution?
2) A plant cell, when initially placed in pure water, has an osmotic potential of -4 bars and a pressure potential of +2 bars.
a) Which way will water diffuse?
b) When will net diffusion stop?
c) When equilibrium is reached, what are the cell's osmotic potential and pressure potential values?
Define the concept of osmotic
adjustment in root cells and how its
occurrence is of benefit to plant survival.
Explain what would happen if a plant cell was placed in a hypotonic environment and why (be sure to include solute concentrations, water movement and turgor pressure in your explanation)?
Chapter 29 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 29.1 - Why is long-distance transport important for...Ch. 29.1 - Prob. 2CCCh. 29.1 - WHAT IF? Some plants can detect increased levels...Ch. 29.2 - If a plant cell immersed in distilled water has a...Ch. 29.2 - How would a reduction in the number of aquaporin...Ch. 29.2 - WHAT IF? What would happen if you put plant...Ch. 29.3 - Prob. 1CCCh. 29.3 - WHAT IF? If an element increases the growth rate...Ch. 29.3 - Prob. 3CCCh. 29.4 - Prob. 1CC
Ch. 29.4 - Prob. 2CCCh. 29.4 - Prob. 3CCCh. 29.5 - A scientist adds a water-soluble inhibitor of...Ch. 29.5 - WHAT IF? Suppose an Arabidopsis mutant lacking...Ch. 29.5 - Prob. 3CCCh. 29.6 - Prob. 1CCCh. 29.6 - WHAT IF? If you buy cut flowers, why might the...Ch. 29.6 - Prob. 3CCCh. 29.7 - Prob. 1CCCh. 29.7 - Prob. 2CCCh. 29.7 - Prob. 3CCCh. 29 - Which structure or compartment is part of the...Ch. 29 - Prob. 2TYUCh. 29 - Prob. 3TYUCh. 29 - What would enhance water uptake by a plant cell?...Ch. 29 - Prob. 5TYUCh. 29 - Compared with a cell with few aquaporin proteins...Ch. 29 - Two groups of tomatoes were grown in the...Ch. 29 - Prob. 8TYUCh. 29 - Prob. 9TYUCh. 29 - SCIENTIFIC INQUIRY A Minnesota gardener notes that...Ch. 29 - Prob. 11TYUCh. 29 - FOCUS ON INTERACTIONS The soil in which plants...Ch. 29 - Prob. 13TYU
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- What would enhance water uptake by a plant cell?(A) decreasing the Ψ of the surrounding solution(B) positive pressure on the surrounding solution(C) the loss of solutes from the cell(D) increasing the Ψ of the cytoplasmarrow_forwardWhat is the relationship between osmotic potential and plants when water with salinated water is used to water plants? E.G: How does it inhibit growth and why if the plant isn't salt tolerantarrow_forwardSalinity or salt stress induces the following plant responses except: * A. Induction of osmoregulatory compounds B. Compartmentalization of salt ions in the cytoplasm C. Compartmentalization of salt ions in the central vacuole D. Exclusion of salt ionsarrow_forward
- There are two types of osmotically active solutes in plants.What are compatible solutes and Where are they typically located? Where do ions from inorganic salts accumulate?arrow_forwardWhich one of the following statement is wrong? Options Water is absorbed mainly by unicellular root hairs Cellulosic cell wall is a semi permeable membrane Pure water has maximum diffusic pressure Facilitated diffusion requires special membrane proteinsarrow_forwardName the process by which intact plant cells lose water in the form of droplets from leaf margins.arrow_forward
- explain how celluar transport is used to maintain homeostasis in reabsorption of water in the nephron and absorption of water by rootsarrow_forwardThe diagram below shows the three pathways for water and ion entry into root cells. Identify which correspond to each image (A, B and C) and give the reasons for such identification. O vacuole cytoplasm cellular wall desmosomes water transport A water transport B water transport Carrow_forwardPlease answer question 26arrow_forward
- Explain how solute concentration can affect or influence the amount of water that will enter to and exit from the plant's system through osmosisarrow_forwardDescribe the pathway water would follow from the soil to the stem of a plant. Describe the water's movement through the cells, tissues, and systems of the plant body.arrow_forwardImagine you have a plant with a water potential of -0.1 MPa in the root tissue. What would happen if you place the roots of this plant in a 0.1 M solution of sucrose (water potential is -0.23 MPa)? The net water flow would be from the tissue into the sucrose solution The net water flow would occur only as ATP was hydrolyzed in the tissue The net water flow would be from the sucrose solution into the tissue The net water flow would be in both directions and the concentration of water would remain equal The net water flow would be impossible to determine from the values given herearrow_forward
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