Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 35, Problem 11TYU
How does increasing solute concentration affect water potential? (a) water potential becomes more positive (b) water potential becomes more negative (c) water potential becomes more positive under certain conditions and more negative under other conditions (d) water potential is not affected by solute concentration (e) water potential is always zero when solutes are dissolved in water
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What are some other biological examples of solutes affecting water potential and therefore movement of water in a living organism? Find examples in both plant and animal.
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a. Water potential
b. Osmotic potential
c. Pressure potential
Chapter 35 Solutions
Biology (MindTap Course List)
Ch. 35.1 - Prob. 1LOCh. 35.1 - Prob. 2LOCh. 35.1 - Prob. 3LOCh. 35.1 - Prob. 1CCh. 35.1 - Prob. 2CCh. 35.1 - Prob. 3CCh. 35.1 - Prob. 4CCh. 35.1 - What is the difference between terminal and...Ch. 35.2 - Prob. 4LOCh. 35.2 - Prob. 5LO
Ch. 35.2 - Prob. 6LOCh. 35.2 - Prob. 1CCh. 35.2 - How does the tensioncohesion model explain the...Ch. 35.3 - Describe the pathway of sugar translocation in...Ch. 35.3 - Prob. 8LOCh. 35.3 - Prob. 1CCh. 35.3 - Prob. 2CCh. 35 - Prob. 1TYUCh. 35 - Ground tissue in monocot stems performs the same...Ch. 35 - Prob. 3TYUCh. 35 - Prob. 4TYUCh. 35 - Prob. 5TYUCh. 35 - Prob. 6TYUCh. 35 - Water potential is (a) the formation of a proton...Ch. 35 - Prob. 8TYUCh. 35 - Prob. 9TYUCh. 35 - Which of the following is a mechanism of phloem...Ch. 35 - How does increasing solute concentration affect...Ch. 35 - Prob. 12TYUCh. 35 - Prob. 13TYUCh. 35 - Prob. 14TYUCh. 35 - EVOLUTION LINK Like stems in general, some vines...Ch. 35 - Prob. 16TYU
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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.arrow_forwardAssume that a beaker is divided in half by a membrane which is permeable to water only. A 0.45 M glucose solution is on one side of the membrane, and a 0.40 M NaCl solution is on the other side of the membrane. (a) Diagram the above set-up, (b) indicate with an arrow the direction of water movement across the membrane and (c) explain, specifically, why the movement occurs in that directionarrow_forwardImagine that you have two solutions of glucose in water. One solution consists of 1 g of glucose in 100 mL of water. The other consists of 10 g of glucose in 100 mL. Which solution has a more negative osmotic potential?arrow_forward
- Water molecules tend to diffuse in response to their own concentration gradient. How can water be more or less concentrated?arrow_forwardConsider the two solutions separated by an ideal semipermeable membrane (permeable to water but impermeable to solute). Assuming complete dissociation of all the salts you can expect: a.) net water movement from side 1 to side 2 b.) net water movement from side 2 to side 1 c.) no net water movementarrow_forwardDifference between water potential and solute potential?arrow_forward
- 1. Consider a cell with surface area 2.5 x 102 mm, initial water potential of -0.3MPA and membrane hydraulic conductance of 10 m s MPa". The cell is placed in freshwater having a solute potential of -0.15 MPa. (a) Calculate the driving force for water movement into the cell. (b) Determine the initial flow rate of water into the cell in volumetric terms.arrow_forward1) 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?arrow_forwardi just answered a hw question that i was a little confused on. i answered it but am not fully sure if it's correct. so can you take a look at check if my answer is correct and if it's not, then a explaintion would be helpful. Would you expect water molecules to move faster when there is a HIGH concentration gradient or a LOW concentration gradient? Water molecules would move faster when there is a high concentration gradient because the pressure for the molecules in the high concentration to reach equilibrium increases since there are more molecules there than in the low concentration. So as the molecules move down the concentration gradient faster to equalize the concentration on both sides due to the increased pressure, the rate of diffusion increases.arrow_forward
- in what concentration gradient do water molecules move faster in? would the water molecules move faster when there is a high concentration gradient?arrow_forwardChoose the correct route of water transfer through the cell wall of root hair , cell membrane of cortex cell and epidermis cell Root hair Epidermis cells Cortex cells a imbibition osmosis osmosis b osmosis diffusion osmosis c active transport osmosis diffusion d permeability active transport diffusion (A) (B) (C) (D)arrow_forwardAn osmotic semipermeable membrane that allows only water to pass separates two compartments, A and B. Compartment A contains 0.9% NaCl, and compartment B contains 3% glycerol, C3H8O3. (a) In which compartment will the level of solution rise? (b) Which compartment has the higher osmotic pressure (if either)?arrow_forward
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