Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 5, Problem 3TYU
Test Your Understanding
3. ABC transporters (a) use the energy of ATP hydrolysis to transport certain ions and sugars (b) are important in facilitated diffusion of certain ions (c) are a small group of channel proteins (d) are found mainly in plant cell membranes
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Chapter 5 Solutions
Biology (MindTap Course List)
Ch. 5.1 - Prob. 1LOCh. 5.1 - Prob. 2LOCh. 5.1 - Prob. 3LOCh. 5.1 - Prob. 4LOCh. 5.1 - What molecules are responsible for the physical...Ch. 5.1 - Prob. 2CCh. 5.1 - Prob. 3CCh. 5.2 - Prob. 5LOCh. 5.2 - Prob. 1CCh. 5.2 - What roles do membrane proteins play in cell...
Ch. 5.3 - Describe the importance of selectively permeable...Ch. 5.3 - Prob. 1CCh. 5.3 - Prob. 2CCh. 5.3 - Prob. 3CCh. 5.4 - Prob. 7LOCh. 5.4 - LEARNING O9BJECTIVES 8Define osmosis and solve...Ch. 5.4 - PREDICT What would happen if a plan cell were...Ch. 5.4 - What is the immediate source of energy for simple...Ch. 5.4 - Prob. 3CCh. 5.5 - Prob. 9LOCh. 5.5 - Prob. 1CCh. 5.5 - What is the immediate energy source for...Ch. 5.6 - Prob. 10LOCh. 5.6 - In what ways are exocytosis and endocytosis...Ch. 5.6 - How are the processes of phagocytosis and...Ch. 5.6 - What is the sequence of events in...Ch. 5.7 - Compare the structures and functions of anchoring...Ch. 5.7 - Prob. 1CCh. 5.7 - Prob. 2CCh. 5 - Test Your Understanding 1.Transmembrane proteins...Ch. 5 - Test Your Understanding 2.Which of the following...Ch. 5 - Test Your Understanding 3.ABC transporters (a) use...Ch. 5 - Test Your Understanding 4.When plant cells are in...Ch. 5 - Test Your Understanding 5.Which of the following...Ch. 5 - Test Your Understanding 6.Electrochemical...Ch. 5 - Test Your Understanding 7.In cotransport (indirect...Ch. 5 - Prob. 8TYUCh. 5 - Prob. 9TYUCh. 5 - Test Your Understanding 10.INTERPRET DATA GLUT 4...Ch. 5 - Prob. 11TYUCh. 5 - Test Your Understanding 12.EVOLUTION LINK Explain...Ch. 5 - Prob. 13TYU
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- Test Your Understanding 5.Which of the following processes requires the cell to expend metabolic energy directly (e.g., from ATP)? (a) osmosis (b) facilitated diffusion (c) all forms of carrier-mediated transport (d) active transport (d) active transport (e) simple diffusionarrow_forwardTest Your Understanding 1.Transmembrane proteins (a) are peripheral proteins (b) receptor proteins (c) extend completely through the membrane (d) extend along the surface of the membrane (e) are secreted from the cellarrow_forwardTest Your Understanding 6.Electrochemical gradients (a) power simple diffusion (b) are established by pinocytosis (c) are necessary for transport by aquaporins (d) are established by concentration gradients (e) are a result of both an electric charge difference and a concentration difference between the two sides of the membranearrow_forward
- Test Your Understanding 10.INTERPRET DATA GLUT 4 is a glucose transporter that functions in adipose (fat) cell plasma membranes. An analysis of adipose cells exposed to insulin showed that a single cell could import glucose at a maximum rate of about 1108 molecules/second. Under the same conditions, unstimulated cells could only transport a maximum of about 1107 molecules/second. What does this finding tell you about the relative number of GLUT 4 transporters functioning in the plasma membranes of stimulated versus unstimulated cells?arrow_forwardTest Your Understanding 12.EVOLUTION LINK Explain to your roommate why the evolution of biological membranes was an essential step in the origin of life. Give arguments supporting (or challenging) this hypothesis.arrow_forwardTest Your Understanding 4. Diffusion is an (a) endergonic process because free energy increases (b) endergonic process because free energy decreases (c) exergonic process because entropy increases (d) exergonic process because entropy decreases (e) more than one of the preceding options are truearrow_forward
- Test Your Understanding 7.In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against its concentration gradient (b) the move of one solute down its concentration gradient provides energy for transport of some other solute up its concentration gradient (c) a channel protein moves ions by facilitated diffusion (d) osmosis powers the movement of ions against their concentration gradient (e) sodium is directly transported in one direction, and potassium is indirectly transported in the same directionarrow_forward1.what is the importance of membrane transport and what are the values that you need to develop after knowing the importance of it? 2.what can happen when an organism lacks the necessary enzymes? 3.how do enzymes aid in harnessing the energ from the food we eat? 4.how are the enzyme activity affected by concentration of substrate, changes in temperature, and ph?arrow_forwardTest Your Understanding 12 VISUALIZE Label the diagram.arrow_forward
- Check your understanding about the following statements:I. Large cells have more surface area relative to cell volume than small cells. II. As cell increases in size, the surface/volume ratio increases. a. The first statement is true. The second statement is false. b. The first statement is false. The second statement is true c. Both statements are true d. Both statements are false.arrow_forwardTest Your Understanding 8. Induced fit means that when a substrate binds to an enzymes active site, (a) it fits perfectly, like a key in a lock (b) the substrate and enzyme undergo conformational changes (c) a site other than the active site undergoes a conformational change (d) the substrate and the enzyme become irreversibly bound to each other (e) c and darrow_forward3. The protein integrin binds to actin filaments and, by binding to proteins like fibronectins, connects to collagen. In this manner, integrin ______. A.controls the permeability of the cytoplasmic membrane B. suspends organelles within the cytoplasm C. provides a direct linkage between the cytoskeleton and the extracellular matrix D. helps keep individual cells in place and connects adjacent cells to each otherarrow_forward
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