Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 7, Problem 15TYK
Which of the following describes cotransport?
- a. active transport of two solutes through a cotransport protein
- b. passive transport of two solutes through a cotransport protein
- c. a pump such as the sodium-potassium pump that moves ions in two different directions
- d. transport of one solute against its concentration gradient in tandem with another that is diffusing down its concentration gradient
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Students have asked these similar questions
What is osmosis?
a.
the process where water diffuses across the cells' membrane from an area of lower water concentration to an area of higher water concentration
b.
Where a solute diffuses across the cell membrane from an area of higher to lower concentration
c.
the process where water diffuses across a cells' membrane to an equal concentration of water on both sides of the membrane
d.
The process where a solute diffuses into water through membranous sacks not using energy
If the concentration of a solute is the same both inside and outside the cell, what might you expect with regard to its transport by a membrane protein?
A. Since there is no concentration gradient, no transport either in or out of the cell is possible.
B. The transport protein has been saturated.
C. The solute must be phosphorylated with a phosphate group from ATP before further transport can occur.
D. Movement of the solute across the membrane could occur and cause accumulated on one side of the membrane by an active transport protein.
The concerted model of allosteric regulation is different from the sequential model, because:
A. The concerted model is used to explain homotropic effects
B. The sequential model is used to explain heterotropic effects
C. Both A and B
D. Neither A nor B
Which of the following presents the correct sequence of steps involved in the short-distance transport of solutes across plasma membrane?
A. A-D-B-C
B. D-B-A-C
C. B-A-C-D
D. A-B-C-D
Chapter 7 Solutions
Study Guide for Campbell Biology
Ch. 7 - Label the components in the following diagram of a...Ch. 7 - a. Cite some experimental evidence that indicates...Ch. 7 - List the six major functions that membrane...Ch. 7 - What types of molecules have difficulty crossing...Ch. 7 - A solution of 1 M glucose is separated by a...Ch. 7 - a. What osmotic problems does the freshwater...Ch. 7 - Prob. 7IQCh. 7 - Prob. 8IQCh. 7 - a. How is cholesterol transported into human...Ch. 7 - Create a concept map to illustrate your...
Ch. 7 - The following diagram illustrates passive and...Ch. 7 - If a single layer of phospholipids coats the water...Ch. 7 - Glycoproteins and glycolipids are important for a....Ch. 7 - Prob. 3TYKCh. 7 - Prob. 4TYKCh. 7 - Prob. 5TYKCh. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - Use the following U-tube setup to answer questions...Ch. 7 - How much work is expended in diffusion? a. an...Ch. 7 - Prob. 10TYKCh. 7 - Prob. 11TYKCh. 7 - Water passes quickly through cell membranes...Ch. 7 - Facilitated diffusion of ions across a cellular...Ch. 7 - Prob. 14TYKCh. 7 - Which of the following describes cotransport? a....Ch. 7 - Prob. 16TYKCh. 7 - An animal cell moves potassium against its...Ch. 7 - Prob. 18TYKCh. 7 - Prob. 19TYKCh. 7 - In response to low blood pressure, the adrenal...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following describes how osmosis occurs across a cell membrane/ A. Solutes move from an area of high water concentration to an area of low water concentration. B. Water moves from an area of low solute concentration to an area of high solute concentration. C. Both water and solutes move across the cell membrane from an area of high concentration to an area of low concentration. D. Solutes move from an area of low solute concentration to an area of high solute concentration. E. Water moves from an area of high solute concentration to an area of low solute concentration.arrow_forwardThe sodium-potassium pump helps to maintain electrolyte gradients through use of ATP. Which of the following best describes this type of transport? a. osmosis b. passive transport c. diffusion d. active transportarrow_forwardWhich of these processes are membrane-crossing mechanisms that require no energy input? Select all that apply. A. Osmosis B. Facilitated diffusion C. Sodium-potassium pumparrow_forward
- Which of the following types of transporters would be utilized to move two different types of molecules across the cell membrane in the same direction? a. Uniporter b. Symporter/Cotransporter c. Antiporter d. Chemiporter e. Protoporterarrow_forwardTransport mechanisms are often categorized according to the number of transported solutes and the direction of solute transport. 1. Uniporters transport one solute. 2. Symporters transport two different solutes simultaneously in the same direction. 3. Antiporters transport two different solutes simultaneously in opposite directions. After examining the examples of transport discussed in this chapter, determine the category to which each belongsarrow_forwardThe passive non-mediated movement of particles across a membrane driven by pressure is A. filtration B. diffusion C. facilitated diffusion D. osmosis E. active transport F. vesicular transportarrow_forward
- Which of the following is incorrect about membrane transport systems? a. Glucose transport in red blood cells is a uniport system b. The Na+/K+ ATPase is an antiport system c. The H+/K+ ATPase is an active transport system d. The chloride-bicarbonate exchanger in erythrocytes is a uniport systemarrow_forwardIf the fluid inside a cell has a 1.5% solute concentration, which of the following solution(s) would be considered HYPOTONIC? SELECT ALL THAT APPY A. A solution with 3.4% calcium phosphate concentration B. A solution with 1.4% glucose concentration C. A solution with 2.5% potassium chloride concentration D. A solution with 0.5% sodium chloride concentration\arrow_forwardWhich of the following is TRUE of sharks and other osmoconformers? A. The solute concentration inside the organism is maintained at a higher level by active import of solutes. B. The total solute concentration is the same inside and outside of the organism C. The solute concentration inside the organism is maintained at a lower level by active export of solutes. D. The NaCl concentration is the same inside and outside of the organismarrow_forward
- The passive, non-mediated movement of particles into or out of a cell following the particle’s concentration gradient is called A. osmosis B. vesicular transport C. filtration D. diffusion E. facilitated diffusion F. active transportarrow_forwardSuppose that you have a splinter that is embedded so deep in your foot that you cannot remove it with tweezers. How could you use what you learned in this unit as a first-aid remedy in this situation? Select one: O A. Use active transport to your advantage to draw water into your foot. O B. Use osmosis to your advantage by placing your foot in a hypotonic solution. C. Use osmosis to your advantage by placing your foot in a hypertonic solution. D. Use an artificial concentration gradient to draw water into your foot. E. Use osmosis to your advantage by placing your foot in an isotonic solution.arrow_forwardCholera affects millions of people around the world. It causes diarrhea, which can lead to dehydration and even death. Cholera toxin affects a chloride transporter that secretes chloride ion into the lumen of the small intestine. How does cholera toxin lead to dehydration? A. The toxin turns off the transporter, so the negatively charged chloride pushes water into the lumen. B. The toxin turns off the transporter, and water follows the ion due to osmosis. C. The toxin turns on the transporter and water is actively transported with the ion. D. The toxin turns off the transporter and water is no longer exchange for the chloride ion.arrow_forward
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