Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Question
Chapter 36, Problem 9TYK
Summary Introduction
Introduction: The measure of potential energy in water is known as water potential and it initiates the movement of water through the plants. The water potential is also a difference between solute concentration and physical pressure.
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You are working with cells that have an internal solute concentration of 5mM solute. This solute is large and ionized. You place them in a medium that has a concentration of 7.7 mM solute. What will happen? (More than one answer may be applicable)
a.
The cells will swell initially, then return to their original size.
b.
The cell will burst.
c.
The cells will shrink in size.
d.
I do not expect anything to happen.
When a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur?
Group of answer choices
A. the cell will become flaccid
B. the cell membrane will lyse
C. he cell will become turgid
D. plasmolysis will shrink the interior
E the cell will burst
If a cell is placed in a hypertonic solution of NaCl (which becomes Na+ and Cl- when dissolved in water-based solutions)
a. water will move into the cell and the cell with swell
b.water will move out of the cell and the cell will shrink
Chapter 36 Solutions
Study Guide for Campbell Biology
Ch. 36 - Prob. 1IQCh. 36 - a. A flaccid plant cell has a water potential of...Ch. 36 - Prob. 3IQCh. 36 - Prob. 4IQCh. 36 - Prob. 5IQCh. 36 - Prob. 6IQCh. 36 - Prob. 1SYKCh. 36 - Prob. 2SYKCh. 36 - If a plant has a phyllotaxy of alternate leaves...Ch. 36 - Prob. 2TYK
Ch. 36 - Prob. 3TYKCh. 36 - Prob. 4TYKCh. 36 - Prob. 5TYKCh. 36 - Prob. 6TYKCh. 36 - Prob. 7TYKCh. 36 - Prob. 8TYKCh. 36 - Prob. 9TYKCh. 36 - Prob. 10TYKCh. 36 - Prob. 11TYKCh. 36 - Prob. 12TYKCh. 36 - Prob. 13TYKCh. 36 - Prob. 14TYKCh. 36 - Prob. 15TYKCh. 36 - Your favorite houseplant is wilting. Which of the...Ch. 36 - Prob. 17TYKCh. 36 - Which of the following mechanisms explains the...Ch. 36 - Prob. 19TYKCh. 36 - Prob. 20TYK
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- Which 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_forwardIf you place a flaccid plant cell with ΨS = -0.4 MPa in pure water, which of the following will occur? A. Water will not enter the cell because the flaccid cell has solutes and low water potential. B. Water enters the cell because the flaccid cell has solutes and low water potential. C. Water enters the cell because the flaccid cell has solutes and high water potential. D. Water will not enter the cell because the flaccid cell has solutes and high water potential.arrow_forwardAdjacent plant cells have narrow channels called plasmodesmata that pass through the cell walls of the connected cells. Which of the following statements best describes a primary function of plasmodesmata? A B с D They eliminate the need for cells to have receptors for signaling molecules. They eliminate the need to produce signaling molecules. They decrease the energy requirements for active transport. They allow the movement of nutrients and signaling molecules across adjacent cells.arrow_forward
- Is the solute potential of the cell increased or decreased by plasmolysis? Explain. Diffusion- Effect of concentration. Please discuss the data below.arrow_forwardIn this part of the assignment, assume you have carried out the microscopic examination of the effects of osmosis in plant cells experiment The image in Figure 4 is of Elodea canadensis leaf cells in isotonic solution (normal saline). The image in Figure 5 is of Elodea canadensis leaf cells in 10% sucrose solution. The image in Figure 6 is of Elodea canadensis leaf cells in distilled water. a. Determine cell size and vacuole size. b. Calculate the percentage change in vacuole size for each treatment compared to the control. Use the formula: Experimental Size - Control Size/Control Size c. Based on these results, explain the tonicity of each treatment using experimental results to support your answer as would appear in the discussion section of a formal report (maximum four (4) lines). d. Was the percentage change in vacuole size for the experimental conditions relative to the control of similar magnitude? If the change was not of the same magnitude, explain the difference in effect…arrow_forwardYou 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 potentialarrow_forward
- A plant cell with ΨW (water potential) = -2.4 is placed in pure water (ΨW = 0). What do you expect to happen to the cell? a. The cell will become hypotonic b. The cell will burst c. The cell will become swollen and turgid d. The cell’s cytoplasm will shrivelarrow_forwardThis is from osmosis in plant cellsarrow_forwardWhat molecules move in and out of the cells of Boat lily? If the set-up using .9% NaCl solution exposure will be prolonged, what will happen? http://amrita.olabs.edu.in/?sub=79&brch=17&sim=199&cnt=4arrow_forward
- The picture below shows a preparation of isolated thylakoid membranes suspended in a buffer at pH 7. The preparation is in complete darkness. Which of the following is required for the thylakoids to generate ATP? A. Isolated thylakoid membranes cannot synthesize ATP. B. Incubation in the light plus ADP, Pi and NADP+ C. Incubation in the light plus ADP and Pi. D. Addition of ADP and Pi to the buffer.arrow_forward1) We measured weights before and after soaking a potato in water of different salinities to demonstrate osmosis. There are many other types of membrane transport (as we learned from the Amoeba Sisters!), each with their role in maintaining homeostasis and providing energy, communication, and waste removal for the cell. So why dwell on osmosis? There are some practical bigger- picture things to consider. Choose one of the following scenarios. Describe the scenario. Describe the chain of events terms of tonicity_and movement of water into or out of cells represented by the scenario. Describe the predicted outcomes for the cells/organisms involved. What happens when you dry brine a turkey before cooking? ● • What happens to organisms in soil near salted roads when snow melt and rains occur? Why is sugar considered a good preservative? What is the challenge of heavy rains along the Mississippi River for organisms in the Gulf of Mexico? ● • What happens to fruit when you add sugar? ●arrow_forwardVarious chemical methods can be used to permeabilize or lyse cells including the use of enzymes. List three important factors to consider when developing a lysis method using enzymes. Estimate the osmotic pressure drop across the membrane of an animal cell in a 0.10 M NaCl solution, assuming that the internal total solute concentration is 0.36 osM and temperature is 30.0°C. Do you think that this pressure drop would lyse cells? Why or why not?arrow_forward
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