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 34.1, Problem 2SB
Summary Introduction
To review:
The function of solute potential and pressure potential in water potential.
Introduction:
Solute potential or osmotic potential is denoted by (ѱs). It is negative in a plant cell and zero in distilled water. The turgor potential, also called pressure potential, is denoted by (ѱp). It may be positive or negative. The water potential can be calculated as
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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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- If a concentration gradient exists, solutes will move from high concentration to concentration?arrow_forwarddescribe what it means when a solute moves against its concentation gradient.arrow_forwardThe Goldman Equation is different from the nernst in that in considers: a) several ions b) permeability ratios c) action potentials d) a & b e) a, b, carrow_forward
- In what ways can the net solute flux between two compartments separated by a permeable membrane be increased?arrow_forwardYou have a semi permeable membrane with a membrane potential of -90mV. You also have two ions that are both permeable to the membrane, Na and Cl. Na has a concentration of 10mM inside the membrane and 120mM outside the membrane. Cl has a concentration of 1.5mM inside the membrane and 77.5mM outside the membrane. Use the nernst equation to calculate the electrochemical equilibrium of both ions, and show in which direction the netflux would be for each ion.arrow_forwardDifferentiate between a concentration gradient and an electrical potential?arrow_forward
- In the Nernst equation [V = 62 log10 (Co / Ci)], the term Co represents: cell bio the intracellular concentration of calcium the extracellular concentration of potassium the extracellular concentration of sodium the intracellular concentration of potassium the membrane potential (in millivolts)arrow_forwardWhen two chambers are separated by a membrane permeable to water but not solute, if water is free to move in either direction without limitation or pressure, then water will move until the concentration of solute on both sides of the chamber is equal move until there is no water on the dilute side move until there is no water on the concentrated side move until the concentration of water on both sides of the chamber is equalarrow_forwardThe electrochemical gradient across membranes is important in determining movement across membranes for a certain type(s) of solute. Which kind? Both anions and cations Positively charged (cations) Neutral/uncharged solutes Negatively charged (anions)arrow_forward
- What is the role of mineral salts in the creation of electric tension (voltage) at the cellular level?arrow_forwardCalculate ΔGinward. Is energy required for transport to happen? The cell is at 25°C. Membrane potential = -60 mV. What is the ΔGinward for chloride? Use the chart.arrow_forwardHow 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 waterarrow_forward
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