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
expand_more
expand_more
format_list_bulleted
Question
Chapter 36, Problem 1SYK
Summary Introduction
To describe: The ways in which the solutes might move across the plasma membrane in plants.
Introduction: All the cells in a plant are surrounded or protected by a semipermeable membrane called a plasma membrane. This membrane is made of a phospholipid bilayer; in addition, lipid molecules and proteins are present. Plasma membrane helps in keeping the toxic substances out of the cell.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the membrane potential? Is the outside of theplasma membrane positively or negatively chargedcompared with the inside?
In conditions of dehydration, plant cells can increase their water retention by regulating the
function of some or all of their aquaporins, membrane-bound protein channels that allow
water to move through the cell membrane via facilitated diffusion.
Which of the following describes a likely mechanism by which aquaporins can be used to
regulate the movement of water across the plant cell membrane?
A
B
с
D
Synthesis of additional aquaporins by the plant cell ribosomes will allow the cell to coun-
teract the movement of water out of the cell.
Inhibition of ATP hydrolysis will make the aquaporins unable to remove water from the
cell and cause more water to remain in the cell.
Inactivation of aquaporins will make water molecules unable to move across the plant
cell membrane and allow more water to remain in the cell.
Inhibition of the plant cell Golgi apparatus will decrease the production rate of vesicles
and slow down the exocytosis of water molecules.
Draw and label a cell lipid bilayer and diagram how the following transport processes take place: passive diffusion of oxygen into the cell, facilitated diffusion of potassium into the cell, active transport of sucrose into the cell. Using different symbols (circles for oxygen, squares for sucrose, and triangles for potassium ions), show the relative concentrations (gradients) of these substances on the inside and outside of the cell. For example, to show that oxygen enters the cell by going “down” its gradient, you would draw more circles on the outside of the cell than inside the cell. Be sure to show and label membrane proteins when appropriate, and show the electric membrane potential using “+”s (pluses) on one side and “-”s (minuses) on the other side of the membrane. Also show the proton pump which uses ATP as a source of energy.
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
Knowledge Booster
Learn more about
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
- 1) 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_forwardW lhai is une tonicity of the ceii if its ECF is surrounded by 20% soiute and iCF conains 13% soiute? Show your solution. Draw the solid arrows to indicate the net movement of the solutes into and/or out of the cell. Is the tonicity of the cell isotonic, hypertonic or hypotonic? ICF ECF 15% 20% 4. What is the cell tonicity of the plant if its ECF has 73% salt and its ICF has 10% salt? Show your solution. Draw the solid arrows to indicate the net movement of the solutes into and/or out of the cell. Is the tonicity of the cell isotonic, hypertonic or hypotonic? ICF ECF 10% 73%arrow_forwardall the option are the same as shownarrow_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_forwardWhy does cytoplasmic streaming only ocur in some parts of a cell of a leaf, provided the leaf is in good condition?arrow_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_forward
- The structure of a plant cell wall needs to loosen to accommodate cell growth. What signaling molecule controls this process?arrow_forwardIn nonmuscle cell locomotion, which protein is activated to nucleate a filament? Arp2/3 Vinculin Gelsolin Profilin Cofilinarrow_forwardWhen we discuss the "physiological concentrations of Na+ and K+" what actually sets these concentrations?arrow_forward
- 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 potentialarrow_forwardAre peripheral proteins the only class of membrane protein associated with one leaf? What about integral monotopic proteins, fatty acid/isoprenyl anchors, and GPI anchors?arrow_forwardList three mediator proteins that move phospholipid molecules from one side of a membrane to the other. Why arethese proteins required?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
How do Plants Handle Stress?; Author: Alex Dainis;https://www.youtube.com/watch?v=TYsnveEHqec;License: Standard Youtube License