BIOLOGY DUAL ENROLLMENT VERSION
12th Edition
ISBN: 9780136681311
Author: Urry
Publisher: PEARSON
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Chapter 7.3, Problem 1CC
Summary Introduction
To explain: How does a cell get rids of CO2that is produced during
Introduction: Diffusion is a process in which a substance moves from an area of its higher concentration to an area of its lower concentration without the expenditure of energy. The molecules move in a direction from a higher to a lower concentration gradient. For example, during a respiration process, oxygen molecule (O2) is taken up by cells. Oxygen is a non-polar molecule that can rapidly cross the lipid bilayer of the plasma membrane. The O2is in higher concentration outside the cell membrane than inside, so it favors the diffusion of O2 inside the cell.
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Chapter 7 Solutions
BIOLOGY DUAL ENROLLMENT VERSION
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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