Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 6.4, Problem 3R
Summary Introduction
To review:
The difference between secondary and primary active transport.
Introduction:
The process of movement of molecules against their concentration gradient across a membrane is known as active transport. It helps in marinating the homeostasis inside the body. It is of two types, namely, primary as well as secondary active transport.
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Chapter 6 Solutions
Life: The Science of Biology
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- List the means of unassisted membrane transport.arrow_forwardThe three fundamental classes of proteins involved in transport across membranes are: i) channelsii) pumpsiii) exchangers For each class, describe its essential features, explain how transport is accomplished and name at least one representative example.arrow_forwardWhat is mediated transport? What types of particles movethrough the plasma membrane by mediated transport?arrow_forward
- what are the two forms of transport ? describe them active and passive transportarrow_forwardWhat is the primary difference between active transport processes and passive transport processes?arrow_forwardIn terms of rate of transport of a molecule across a membrane , what is the difference between passive and active transport?arrow_forward
- For 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_forwardWhat characteristics distinguish simple diffusion from facilitated diffusion?arrow_forwardAll of the following are passive membrane transport processes except: (a) diffusion. (b) facilitated diffusion. (c) vesicular transport. (d) osmosis.arrow_forward
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