EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
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Chapter 9, Problem 9TYU
MAKE CONNECTIONS The proton pump shown in Figures 7.17 and 7.18 is a type of ATP synthase (see Figure 9.14). Compare the processes shown in the two figures, and say whether they are involved in active or passive transport (see Concepts 7.3 and 7.4).
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Can you explain why when the pH level was changed from 0 to 5, the ATP production was affected despite the supply of glucose being constant at just 1 mol for both treatments (At 0 pH and 5 pH). What is the reason on why this could have happened?
Coupled transport across a cell membrane:
O requires isomerization of a pigment molecule by a photon.
O requires ATP hydrolysis to power the transporter's conformational changes.
O always transports both cargo molecules in the same direction.
O None of these options describe coupled transport.
O cannot occur if either cargo molecule can achieve transit alone through the
transporter.
Chapter 9 Solutions
EBK CAMPBELL BIOLOGY
Ch. 9.1 - Prob. 1CCCh. 9.1 - WHAT IF? If the following redox reaction...Ch. 9.2 - VISUAL SKILLS During the redox reaction in...Ch. 9.3 - Prob. 1CCCh. 9.3 - What process in your cells produce the CO2 that...Ch. 9.3 - VISUAL SKILLS The conversions shown in Figure...Ch. 9.4 - WHAT IF? What effect would an absence of O2 have...Ch. 9.4 - WHAT IF? In the absence of O2 as in question 1,...Ch. 9.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 9.5 - Consider the NADH formed during glycolysis. What...
Ch. 9.5 - WHAT IF? A glucose-fed yeast cell is moved from...Ch. 9.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.6 - VISUAL SKILLS During intense exercise, can a...Ch. 9 - Describe the difference between the two processes...Ch. 9 - Which reactions in glycolysis are the source of...Ch. 9 - What molecular products indicate the complete...Ch. 9 - Briefly explain the mechanism by which ATP...Ch. 9 - Prob. 9.5CRCh. 9 - Prob. 9.6CRCh. 9 - Level 1: Knowledge/Comprehension 1. The immediate...Ch. 9 - Prob. 2TYUCh. 9 - 3. The final electron acceptor of the electron...Ch. 9 - Prob. 4TYUCh. 9 - What is the oxidizing agent in the following...Ch. 9 - When electrons flow along the electron transport...Ch. 9 - Prob. 7TYUCh. 9 - Prob. 8TYUCh. 9 - MAKE CONNECTIONS The proton pump shown in Figures...Ch. 9 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 9 - DRAW IT The graph here shows the pH difference...Ch. 9 - EVOLUTION CONNECTION AIP synthases are found in...Ch. 9 - SCIENTIFIC INQUIRY In the 1930s, some physicians...Ch. 9 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Coenzyme Q (CoQ) is sold...
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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
- K+ [Select] [Select] A Na+ Primary active transport is being shown by transporter [Select] which uses [Select] ATP [Select] B The transported molecules in this mechanism are being moved [Select] to move Glucose active transport is being shown by transporter [Select] which uses the gradient. Secondary to move against the gradient. When both the molecules move through a transporter in the same direction as in B, this type of transport is called antiport.arrow_forwardFocusing on the mechanism linking complex I and ATP synthase depicted in figure 3 in the article, compare that hypothetical mechanism to the classical presentation described in our textbook. What are the major differences between this mechanism and Peter Mitchel’s original chemiosmotic theory? What are the similarities.arrow_forwardPart B → you were dealing with an uncharged molecule rather than an ion, would your answer for part A be higher or lower, assuming all other conditions remained the same? Explain Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Not all terms will be used. Submit Provide Feedback, 포 would higher would not lower the same Request Answer The actual value for an uncharged molecule would be the membrane potential 8 be reduced much more because the ATP-driven pumping Reset Help since the internal concentration have to fightarrow_forward
- How do proton pumps contribute to membrane potential? Please explain in 3-8 sentencesarrow_forwardIn 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_forwardImage shows reaction for hydrogen ion transport from outside mitochondrion to inside mitochondrion. Part a) What is ∆G ̊ for hydrogen ion transport. Part b) Outside the mitochondria there is a pH of 6.4 and inside mitochondria, there is a pH of 7.4. Calculate Q and ∆G for the reaction shown in the image. Part c) How many hydrogen ions needed per one ATP?arrow_forward
- Focusing on the mechanism linking complex I and ATP synthase depicted in figure 3 in the article, compare that hypothetical mechanism to the classical presentation described in textbooks. What are the major differences between this mechanism and Peter Mitchel’s original chemiosmotic theory? What are the similarities.arrow_forwardThe pH values of the different compartments are shown below: matrix Intermembrane space Cytosol pH 7.8 – 8.0 pH ~ 7.0pH 7.0 – 7.4 Proton flow through ATP synthase leads to the formation of ATP, a process defined as the binding-change mechanism that was initially proposed by Boyer. Briefly explain Boyer’s binding change mechanism for the ATP synthase.arrow_forwardCalculate ΔGinward. Is energy required for transport to happen? The internal pH of a lysosome= 4.0 and the pH of the cytosol is 7.0. For a cell at 25°C with a -40 mV lysosome membrane potential. What is the ΔGinward for the proton gradient into the lysosome?arrow_forward
- Please help me with thisarrow_forward3 Diagram A below illustrates schematically a classic experiment designed to test the chemi- osmotic hypothesis. Phospholipid vesicles were made to contain beef heart mitochondrial ATP syn- thase and bacteriorhodopsin, a light driven proton pump isolated from Halobacterium holobium. Under light illumination, proton translocation by bacteriorhodopsin results in ATP synthesis when ADP and inorganic phosphate (Pi) are added to the suspension of vesicles. Diagram B shows a plot of the rate of ATP synthesis as a function of the proton gradient ApH. Bacteriorhodopsin in synthetic vesicle 100F A outside inside 5아 Fo F1 0.3 0.6 0.9 1.2 A pH (a) how this differs from its orientation in mitochondria. Given the orientation of the components of ATP synthase complex in diagram A, describe (b) cavity of the vesicle become the region of low proton concentration or the region of high proton con- centration? Explain your reasoning. Under light illumination to activate bacteriorhodopsin to drive ATP…arrow_forwardComplex 2 EXTRACELLULAR SPACE glucose 3 Na plasma membrane K* electrochemica gradient Na electrochemical gradient glucose concentration gradient CYTOSOL ADP ATP Complex 1 Digoxin is a complex 1 inhibitor. Suppose digoxin was added to the cell and the fluids from the extracellular space and cytosol were subjected to Benedict's test. Describe the expected result from the test.arrow_forward
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