Biology: The Dynamic Science (MindTap Course List)
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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Increasing the concentration of solutes increases osmotic potential, hence water potential decreases. A. Agree, because presence of solutes increses osmotic pressure and thus osmotic potential. C. Agree, because they just represent the same values. D. Disagree, because it is the decrease in water pressure that decreases osmotic potential. B. Disagree, because presence of solutes increases osmotic pressure which decreases osmotic potential.
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
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