FUND OF ANAT & PHYS TEXTBK (LL W/ LAB
10th Edition
ISBN: 9780134645766
Author: Martini
Publisher: PEARSON
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Chapter 25, Problem 10RQ
Summary Introduction
To define:
The term oxidative phosphorylation and discuss the involvement of electron transport chain and chemiosmosis in this process.
Introduction: The transfer of electrons from NADH or FADH2 to O2 through a series of electron carriers which leads to the formation of ATP used by cells is known as oxidative phosphorylation.
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Chapter 25 Solutions
FUND OF ANAT & PHYS TEXTBK (LL W/ LAB
Ch. 25 - Prob. 1CPCh. 25 - Prob. 2CPCh. 25 - 3. Define anabolism
Ch. 25 - Prob. 4CPCh. 25 - Prob. 5CPCh. 25 - Prob. 6CPCh. 25 - Prob. 7CPCh. 25 - Prob. 8CPCh. 25 - Prob. 9CPCh. 25 - Prob. 10CP
Ch. 25 - Prob. 11CPCh. 25 - Prob. 12CPCh. 25 - Prob. 13CPCh. 25 - Prob. 14CPCh. 25 - Prob. 15CPCh. 25 - Prob. 16CPCh. 25 - Prob. 17CPCh. 25 - Prob. 18CPCh. 25 - Prob. 19CPCh. 25 - Prob. 20CPCh. 25 - Prob. 21CPCh. 25 - Prob. 1RQCh. 25 - The breakdown of glucose to pyruvate is an ______...Ch. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 8RQCh. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - How are lipids catabolized in the body? How is...Ch. 25 - How do the absorptive and postabsorptive states...Ch. 25 - Why is the liver the focal point for metabolic...Ch. 25 - Prob. 14RQCh. 25 - Prob. 15RQCh. 25 - Prob. 16RQCh. 25 - Charlie has a blood test that shows a normal level...Ch. 25 - Jill suffers from anorexia nervosa. One afternoon...Ch. 25 - Prob. 1CCCh. 25 - If Justines dietwhich includes very little milk,...
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- The electron-transport chain consists of a number of multi protein complexes, which work in conjunction to pass electrons from an electron carrier, such as NADH, to O2. What is the role of these complexes in ATP synthesis? It has been demonstrated that respiration supercomplexes contain all the protein components necessary for respiration. Why is this beneficial for ATP synthesis, and what is one way that the existence of super complexes has been demonstrated experimentally? Coenzyme Q (CoQ) is not a protein, but a small, hydrophobic molecule. Why is it important for the functioning of the electron transport chain that CoQ is a hydrophobic molecule?arrow_forwardUnder standard conditions, is the oxidation of ubiquinol (Coenzyme Q) by O2 sufficiently exergonic to drive the synthesis of ATP? If yes, how many ATP can be synthesized assuming 100% efficiency?arrow_forwardWhat steps in glycolysis generate substrate-level phosphorylation, and how many ATP molecules are generated in this way in this pathway? How does the generation of ATP by substrate-level phosphorylation differ from ATP generation by oxidative phosphorylation?arrow_forward
- Explain oxidative phosphorylation in detail. How does the electron transport chain work? How does chemiosmosis take place?arrow_forwardWhy is the amount of ATP produced in cells that can undergo oxidative phosphorylation much greater than those that undergo substrate level phosphorylation only?arrow_forwardWhat two coenzymes participate in electron transport? Identify the high energy and low energy forms of each.arrow_forward
- Describe the chemiosmotic coupling mechanism. Draw a simple picture illustrating this mechanism and how ATP is synthesized in mitochondria. Label the components.arrow_forwardThe electron transport chain contains four large protein complexes: the NADH-Q reductase complex, succinate dehydrogenase, the cytochrome c reductase complex, and the cytochrome c oxidase complex. What do they have in common?arrow_forwardSonicating a suspension of mitochondria produces submitochondrial particles derived from the innermitochondrial membrane. These membranous vesicles seal inside out, so that the intermembrane space of themitochondria becomes the lumen of the submitochondrial particle. Explain (or diagram) the process of electrontransfer and oxidative phosphorylation in these particles. Assuming all the substrates for oxidativephosphorylation are present in excess, does ATP synthesis increase or decrease with an increase in the pH ofthe fluid in which the submitochondrial particles are suspended? Why?arrow_forward
- How many ATP are produced when 3 moles of FADH2 enter the electron transport chain?arrow_forwardExplain why some of the molecules are positioned away from the diagonal in the graph given below. What kind of processes are involved in this phenomenon? Moreover, explain differences and similarities between H-ATPases and H-PPases.arrow_forwardThe reduced coenzymes NADH and FADH2 are oxidized in the ETS. What is the final electron acceptor of the ETS? What is the function of the H+ ion in ATP synthesis?arrow_forward
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