Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 5, Problem 7RQ
Name the protein that allows facilitated diffusion of water. What experiment demonstrated the function of this protein?
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What is the primary difference between passive and active transport in terms of concentration gradients?
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Chapter 5 Solutions
Biology: Life on Earth
Ch. 5 -
1. Membranes consist of a bilayer of ________....Ch. 5 - A membrane that is permeable to some substances...Ch. 5 - Facilitated diffusion involves either _____...Ch. 5 - Prob. 4FTBCh. 5 -
5. After each molecule, place the two-word term...Ch. 5 - Prob. 6FTBCh. 5 - Describe and diagram the structure of a plasma...Ch. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQ
Ch. 5 -
5. Define hypotonic, hypertonic, and isotonic....Ch. 5 -
6. Describe the following types of transport...Ch. 5 - Name the protein that allows facilitated diffusion...Ch. 5 - Imagine a container of glucose solution, divided...Ch. 5 - Prob. 9RQCh. 5 -
1. Different cells have different plasma...Ch. 5 - Predict and sketch the configuration of...Ch. 5 - The fluid portion of blood, in which red blood...Ch. 5 - Some cells in the nervous system wrap themselves...
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- If a percent difference is a negative number, what does this tell us about the change in weight of the artificial cell? If the percent difference is a negative number, what does this tell us about the movement of water across the membrane?arrow_forwardFor a lab on diffusion and osmosis, where a egg yolk was placed in a cup water the following question asks Consider a scenario in which the size of an egg yolk remains unchanged after in water soaking for an hour. What are two possible explanations as to why this occurs? What would two reasons be for the yolk to be unchanged after a hour in water?arrow_forwardin what concentration gradient do water molecules move faster in? would the water molecules move faster when there is a high concentration gradient?arrow_forward
- What is Fick’s first law of diffusion applied to biological membranes?arrow_forwardWhat is the principle behind the Diffusion experiment?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
- The experiment described in Figure 11-16 was performed at 37 °C. If the experiment were carried out at 10 °C, what effect would you expect on the rate of diffusion? Why?arrow_forwardWhy can humans not survive by drinking seawater? Explain using osmosis.arrow_forwardWrite a paper that describes and compares the processes of diffusion, facilitatedtransport, osmosis, and active transport.arrow_forward
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