Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 9SQ
What is the primary difference between passive and active transport in terms of concentration gradients?
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What is the primary difference between passive and active transport in terms of concentration gradients?
What is the importance of the concentration gradient in passive transport?
What are the distinctions between facilitated difussion, primary active transport and secondary active transport?
Chapter 5 Solutions
Campbell Essential Biology with Physiology (6th Edition)
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- What is the primary difference between active transport processes and passive transport processes?arrow_forwardWhat is the difference between active and passive transport processes?arrow_forwardAre symporters and antiporters always involved in active transport? Can't both solutes move in the same direction and be moving down their concentration gradient (and the same with antiporters)?arrow_forward
- Define the terms (i) facilitated diffusion, (ii) primary active transport and (iii) secondary active transport. Identify which of these transport types the following are examples of: a) ATP/ADP translocase b) K^+ channels c) Bacteriorhodopsinarrow_forwardA migrating fish would be rapidly transferring substances across cell membranes. These substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would be most likely to be moved via active transport? Why? What is a transmembrane gradient? What is an electrochemical gradient?arrow_forwardWhat is the difference between simple and facilitated diffusion? Facilitated by which type of molecule does the term “facilitated” mean?arrow_forward
- What is mediated transport? What types of particles movethrough the plasma membrane by mediated transport?arrow_forwardFor each type of membrane transport, know the following:– Is a transporter protein required? If so, what type?– Is there an energy requirement, and if so, what is the energy source?– What is the relative rate of solute transport based on molecule type? On concentration gradient?– What are examples of the types of solutes transported by carriers and channels?arrow_forwardName two types of passive transport and one type of active transport.arrow_forward
- What determine the direction in which net diffusion of a nonpolar molecule will occur?arrow_forwardIn terms of rate of transport of a molecule across a membrane , what is the difference between passive and active transport?arrow_forwardWhat is the combination of an electrical gradient and a concentration gradient called?arrow_forward
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