Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 34, Problem 3TYK
Summary Introduction
Introduction:
The turgor pressure influences the movement of solutes and water throughout the cell and plant body. It contributes to the turgidity of the cell. The osmotic flow of water across influences the turgor pressure in the plant cells and also maintains the structure of the plant cell.
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Study the following table and identify the
correct sequence of cell which shows the
path of water movement between them :
Osmotic potential Pressure potential
Cell
(MPs)
(MPa)
A
- 0.95
0.40
-
B
- 0.75
0.40
C
- 0.85
0.25
-
You have an intact flaccid cell with a solute potential of -1.22MPa, you dropped
the cell in a solution of 4M concentration at 20°C.
a) In which direction water will flow? Why?
b) At equilibrium, what will be the cell and solution:
a. Water potential
b. Osmotic potential
c. Pressure potential
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 34 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 34.1 - Prob. 1SBCh. 34.1 - Prob. 2SBCh. 34.1 - Explain how the apoplastic, symplastic, and...Ch. 34.2 - Prob. 1SBCh. 34.2 - Prob. 2SBCh. 34.3 - Prob. 1SBCh. 34.3 - Prob. 2SBCh. 34.3 - Prob. 3SBCh. 34.4 - Prob. 1SBCh. 34.4 - Prob. 2SB
Ch. 34.5 - Compare and contrast translocation and...Ch. 34.5 - Prob. 2SBCh. 34 - Prob. 1TYKCh. 34 - Prob. 2TYKCh. 34 - Prob. 3TYKCh. 34 - Prob. 4TYKCh. 34 - Prob. 5TYKCh. 34 - Prob. 6TYKCh. 34 - Prob. 7TYKCh. 34 - Prob. 8TYKCh. 34 - An indoor gardener leaving for vacation completely...Ch. 34 - Prob. 10TYKCh. 34 - Prob. 11TYKCh. 34 - Prob. 12TYKCh. 34 - Discuss Concepts Concerns about global climate...Ch. 34 - Prob. 14TYKCh. 34 - Apply Evolutionary Thinking A variety of...Ch. 34 - Prob. 1ITDCh. 34 - Prob. 2ITDCh. 34 - Prob. 3ITD
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Consider a plant cell. The value for solute concentration in a plant cell is -0.12 MPa and the turgor pressure is 0.12 MPa. 1- What is the water potential in this plant cell? 2- If this plant cell were placed in a solution with water potential of -0.1 MPa, what would happen to the cell? (Hint: explain where the water goes and what that does to the cell).arrow_forwardPlease answer the first questionarrow_forwardWhich of the following statements is correct? A. A transmembrane integral protein is required for a lipophilic solute to move through the plasma membrane. B. The net movement of water through a cell membrane is dependent on both the osmotic gradient and the presence of transmembrane channel proteins? C. The membrane permeability for an ion is determined in part by the number of open unipart carriers for that ion in the membrane? D. Both A and B are correct & C is incorrect E. A, B, & C are all correct Please explain! Thank you so mucharrow_forward
- Choose pne of these choices: A. Water molecules will still be able to move across the cell membrand but at a slkwer rate. B. Water moleces will no longer be able to move across the cell membrane. C. Water molecules will move across the cell membrand at a faster rate without the aquaporin regulating their flow. D. Water molecules will only be able to enter the cell by active transport.arrow_forwardBelow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a. Plant cells never shrink with the support of cell wall. b. Low osmolarity means high water content. c. Saltwater fish secrete salt through their gills and have concentrated urine.arrow_forwardImagine a cell with a water potential of –0.1 MPa being placed in a beaker of solution that also has a water potential of –0.1 MPa. Are the two water potentials in equilibrium? Would any water molecules be moving between the cell and the solution? Would there be a net movement of water? Now imagine a root in moist soil, and imagine that the root cortex cells have a water potential of –0.1 MPa and that the soil solution also has a water potential of –0.1 MPa. Would there be any net movement of water into the root?arrow_forward
- The mangrove is a type of tree that lives along coasts, with its roots growing in highly saline water (water with lots of dissolved salt). Scientists have recently learned that mangroves are able to undergo a process similar to reverse osmosis in the tips of their roots. As a result, the water entering the mangrove's body is significantly less salty than the water surrounding its roots. As opposed to artificial reverse osmosis, which uses pressure generated by pumps to force water through a membrane, the mangrove's "passive" reverse osmosis uses negative pressure generated by water evaporating from the mangrove's leaves to pull fresh water through membrane-like structures in its roots. Technology based on the red mangrove's version of "reverse osmosis" is already being developed, and there is hope it may lead to a much less energy-intensive method of desalination (removing salt from water). Develop a potential explanation as to why it would be advantageous to the mangrove to desalinate…arrow_forwardIn the following diagram, if the T.P. of cell A increases to 6, what would be the changes with regard to water movement? O.P. = 12| O.P. = 20 T.P. = 6 T.P. = 14 E O.P. = 15| 0.P. = 8 T.P. = 9 T.P. = 2 D A O.P. = 6 T.P. = 0arrow_forwardWhich of these statements about ion movement through the plasmamembrane is true?a. Movement of Na+ out of the cell requires energy (ATP).b. When Ca2+binds to proteins in ion channels, the diffusion of Na+into the cell is inhibited.c. Specific ion channels regulate the diffusion of Na+ through theplasma membrane.d. All of these are truearrow_forward
- part 1 Reaching osmotic balance across a semipermeable membrane for non-charged molecules depends on: a.Relative solute concentration gradient across the membrane b.Relative electrical gradient across the membrane c.Relative solute concentration and electrical gradient across the membrane part 2 The equilibrium of a charged molecule across a semipermeable membrane depends on: a.Relative solute concentration gradient across the membrane b.Relative electrical gradient across the membrane c.Relative solute concentration and electrical gradient across the membranearrow_forwardOsmosis is the diffusion of water, and can be driven by many different factors, including temperature, pressure, the nature of the location, and solute concentration. Which of these is a requirement for osmosis to occur? Water must flow from low to high water potential. Only within plant cells is pressure required. Temperature must be above 30 C. There must be a semipermeable membrane.arrow_forwardWhich of the following presents the correct sequence of steps involved in the short-distance transport of solutes across plasma membrane? A. A-D-B-C B. D-B-A-C C. B-A-C-D D. A-B-C-Darrow_forward
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