EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
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Chapter 8.3, Problem 3CC
MAKE CONNECTIONS → Does Figure 8.11a show passive or active transport? Explain. (See Concepts 7.3 and 7.4.)
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10. What appears to be the effect of inserting a protein channel into the membrane on the
movement of molecules across the membrane?
11. Is the inner surface (facing the channel) of the embedded protein likely to be polar or nonpolar
in the examples shown in Model 4? Is the exterior surface (facing the fatty acid chains of the
phospholipids) of the embedded protein likely to be polar or nonpolar? Explain your reasoning.
When a membrane protein assists in the passive transport of molecules across a barrier in the
direction down their concentration gradient (from high concentration to low concentration) it is
called facilitated diffusion. Transport proteins may also be involved in active transport where the
cell uses energy from…
Q11
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out what is happening in the area because the object is slowly occupying the space where there
are many creatures are living. They started their path on the fluid. As they continue their
journey, they reached in a transparent layer. In order to make the navigational adjustment,
1.
they need to identify this substance. What could be this thing? They scanned the area using an
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Upon using the tool they have found out that it contains a wide variety of biological molecules
magnification micro
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There are polar and non - polar region. What are these biomolecules? They tried to get inside
Chapter 8 Solutions
EBK CAMPBELL BIOLOGY
Ch. 8.1 - MAKE CONNECTIONS How does the second law of...Ch. 8.1 - Describe the forms of energy found in an apple as...Ch. 8.1 - WHAT IF? If you place a teaspoon of sugar in the...Ch. 8.2 - Cellular respiration uses glucose and oxygen,...Ch. 8.2 - VISUAL SKILLS How would the processes of...Ch. 8.2 - WHAT IF? Some nighttime partygoers wear glow-in-...Ch. 8.3 - How does ATP typically transfer energy from an...Ch. 8.3 - Prob. 2CCCh. 8.3 - MAKE CONNECTIONS Does Figure 8.11a show passive...Ch. 8.4 - Many spontaneous reactions occur very slowly. Why...
Ch. 8.4 - Prob. 2CCCh. 8.4 - WHAT IF? Malonate is an inhibitor of the enzyme...Ch. 8.4 - Prob. 4CCCh. 8.5 - How do an activator and an inhibitor have...Ch. 8.5 - Prob. 2CCCh. 8 - Explain how the highly ordered structure of a cell...Ch. 8 - Explain the meaning of each component in the...Ch. 8 - Describe the ATP cycle: How is ATP used and...Ch. 8 - How do both activation energy barriers and enzymes...Ch. 8 - Prob. 8.5CRCh. 8 - Choose the pair of terms that correctly completes...Ch. 8 - Prob. 2TYUCh. 8 - Which of the following metabolic processes can...Ch. 8 - Prob. 4TYUCh. 8 - Some bacteria art metabolically active in hot...Ch. 8 - If an enzyme is added to a solution where its...Ch. 8 - Prob. 7TYUCh. 8 - EVOLUTION CONNECTION Some people argue that...Ch. 8 - Prob. 9TYUCh. 8 - WRITE ABOUT A THEME: ENERGY AND MATTER Life...Ch. 8 - Prob. 11TYU
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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
- Distinguish between simple diffusion (SD), facilitated diffusion (FD), and active transport (AT) across a membrane for the following questions. (a) Which processes are energy dependent? (b) Which processes need some kind of carrier protein(s)? (c) Which processes can be saturated by substrate? (d) Which processes can establish a concentration gradient? (e) How much energy does it take to transport an uncharged substrate in, if its starting inside concentration is 10-fold greater than outside?arrow_forwardHow is active transport different from simple diffusion? Both active transport and simple diffusion transport molecules against the concentration gradient. In active transport, molecules are moved down the concentration gradient; on the B contrary, molecules to be transported in simple diffusion are moved against the concentration gradient. In active transport, molecules are transported with the aid of transport proteins; on the © other hand, molecules to be transported in simple diffusion do not need transport proteins. In active transport, molecules that are transported does not need metabolic energy; in contrast, molecules transported in simple diffusion need metabolic energy.arrow_forwardFor this practice problem, would the answer be c)NaCl? My reasoning behind this is because molecules under 100 Da can use simple diffusion, while nonpolar molecules and larger molecules like benzene can use channels via facilitated diffusion. However, NaCl dissociates into ions and cannot readily use diffusion?arrow_forward
- What membrane transport family is this protein part of? What are the roles of the different domains of this protein?arrow_forwardAnatomy and Physioarrow_forwardQualitative thinking: For diffusion, we need to keep straight the difference between diffusion rate and diffusive flux. a. How do diffusive flux and diffusion rate differ? How do their units differ? b. Give an equation that relates the two. c. Based on Fick's equation for diffusive flux, what are some conditions that would increase flux and rate?arrow_forward
- In facilitated diffusion, what is the role of the transport protein? > View Available Hint(s) O Transport proteins allow solutes to move passively down their concentration gradient across the membrane. O Transport proteins provide the energy for diffusion of the solute. O Transport proteins provide a low-resistance channel for water molecules to cross the membrane. O Transport proteins provide a protein site for ATP hydrolysis, which facilitates the movement of a solute across a membrane. Transport proteins organize the phospholipids to allow the solute to cross the membrane.arrow_forward6arrow_forwardCalculate the free energy changes at 20°C for the transmembrane movement of Na and K ions using the conditions presented Figure 9.1. Assume the membrane potential is -70 mV. Use 3 significant figures. AG (Na) - AG (K) = kJ. mol ¹ kJ mol2 Aarrow_forward
- Are 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_forwardQ1: Is the dye at equilibrium in any of these glasses? Describe how the first glass will look when the dye is at equilibrium with the water. Q2: Will diffusion mix the molecules of dye evenly through the water, or is it necessary to shake the container to get a uniform mixture? Q3: Will diffusion mix the dye faster in hot water than in cold water? Why or why not?arrow_forwardMembrane Protein Insertion in the ER This figure displays five small hypothetical proteins. The a-helix secondary structure of the protein is bracketed and the number of amino acids in the helix is indicated. If the hypothetical ER localization sequence is green-yellow-yellow-green-yellow-red, what protein could potentially be a transmembrane protein in the plasma membrane? = Acidic = Basic = Polar (uncharged) O = Hydrophobic CO₂ T 20 CO2 T 20 NH₂ A. T 20 NH₂ B. NH₂ C. T 20 NH₂ D. NH₂ E. tot 10arrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license