IA MODIFIED MASTERING BIOLOGY WITH E TEX
12th Edition
ISBN: 9780136781752
Author: Urry
Publisher: PEARSON
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Question
Chapter 7, Problem 5TYU
Summary Introduction
To examine: The experimental treatment that will increase the rate of sucrose transport into a plant cell.
Introduction: A transporter is a protein that spans the lipid bilayer of a plasma membrane and helps the molecules, ions, and other solutes to pass through it. Active transport maintains the internal concentration of solutes that differ in concentration from the environment. Active transport requires energy expenditure to perform the work. The energy is supplied by the hydrolysis of adenosine triphosphate (ATP).
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Consider a plant that is exposed to extreme cold temperatures. Do the cells of this plant manipulate the composition of their membranes in response to this environmental stress?If not, explain why the plant does not manipulate membrane composition in response to this stress.If so, explain the specific changes that these cells would carry out in response to this environmental stress.
Explain what would happen if a plant cell was placed in a hypotonic environment and why (be sure to include solute concentrations, water movement and turgor pressure in your explanation)?
Flippase and scramblase play important roles in the movement of lipid molecules across a membrane bilayer.
Match each characteristic with its associated phospholipid translocator.
Flippase
Scramblase
Chapter 7 Solutions
IA MODIFIED MASTERING BIOLOGY WITH E TEX
Ch. 7.1 - VISUAL SKILLS Carbohydrates are attached to...Ch. 7.1 - Prob. 2CCCh. 7.2 - What property allows O2 and CO2 to cross a lipid...Ch. 7.2 - VISUAL SKILLS Examine Figure 7.2. Why is a...Ch. 7.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 7.3 - Prob. 1CCCh. 7.3 - WHAT IF? If a Paramecium swims from a hypotonic...Ch. 7.4 - Prob. 1CCCh. 7.4 - Prob. 2CCCh. 7.4 - MAKE CONNECTIONS Review the characteristics of...
Ch. 7.5 - As a cell grows, its plasma membrane expands. Does...Ch. 7.5 - DRAW IT Return to Figure 7.9, and circle a patch...Ch. 7.5 - Prob. 3CCCh. 7 - In what ways are membranes crucial to life?Ch. 7 - How do aquaporins affect the permeability of a...Ch. 7 - What happens to a cell placed in a hypertonic...Ch. 7 - ATP is not directly involved in the functioning of...Ch. 7 - Which type of endocytosis involves the binding of...Ch. 7 - In what way do the membranes of a eukaryotic Cell...Ch. 7 - According to the fluid mosaic model of membrane...Ch. 7 - Which of the following factors would tend to...Ch. 7 - Which of the following processes includes all the...Ch. 7 - Prob. 5TYUCh. 7 - DRAW IT An artificial "cell" consisting of an...Ch. 7 - EVOLUTION CONNECTION Paramecium and other...Ch. 7 - Prob. 8TYUCh. 7 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 7 - WRITE ABOUT A THEME: INTERACTIONS A human...Ch. 7 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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