18. The citric acid cycle takes place ina. the chloroplastsb. the cytosolc. the inner mitochondrial membraned. between the two mitochondrial membranese. the mitochondrial matrix40 WIL

The correct answer is: e. the mitochondrial matrixThe citric acid cycle (also known as the Krebs…

Answered: 18. The citric acid cycle takes place…

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter5: Capturing And Releasing Energy

Section: Chapter Questions

Problem 11SQ

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Match the term with the best description. _____ mitochondrial matrix a. needed for glycolysis _____ pyruvate b. inner space _____ NAD+ c. makes many ATP _____ mitochondrion d. product of glycolysis _____ NADH e. reduced coenzyme _____ anaerobic f. no oxygen required
Mitochondrial Abnormalities in Tetralogy of Fallot Tetralogy of Fallot (TF) is a genetic disorder in which heart malformations result in abnormal blood circulation, so oxygen does not reach body cells as it should. With insufficient oxygen to accept electrons at the end of miotchondrial electron transfer chains, too many free radicals form. This damages the mitochondriaand the cells. In 2004, Sarah Kuruvilla studied mitochondria in the heart muscle of TF patients. Some of her results are shown in FIGURE 7.13. Patient (age) SPO2(%) Mitochondrial Abnormalities in TF Number Shape Size Broken 1(5) 55 + + 2(3) 69 + + 3(22) 72 + + 4(2) 74 + + 5(3) 76 + + + 6(2.5) 78 + + + 7(1) 79 + + 8(12) 80 + + 9(4) 80 + + 10(B) 83 + + 11(20) 85 + + 12(2.5) 89 + + FIGURE 7.13 Mitochondrial changes in tetralogy of Fallot (TF). (A) Normal heart muscle. Many mitochondria between the fibers provide muscle cells with ATP for contraction. (B) Heart muscle from a person with TF has swollen, broken mitochondria. (C) Types of mitochondrial abnormalities in TF patients. SPO2 is oxygen saturation of the blood. A normal value of SPO2 is 96%. Abnormalities are marked +. 3. Can you make any correlations between blood oxygen content and mitochondrial abnormalities in these patients?
Which pathway produces the most ATP molecules? lactic acid fermentation the Krebs cycle the electron transport chain glycolysis
The Krebs cycle converts ________ through a cycle of reactions. In the process, ATP, ________, and ________ are produced. acetyl CoA; FAD, NAD acetyl CoA; FADH2; NADH pyruvate; NAD; FADH2 pyruvate; oxygen; oxaloacetate
Mitochondrial Abnormalities in Tetralogy of Fallot Tetralogy of Fallot (TF) is a genetic disorder in which heart malformations result in abnormal blood circulation, so oxygen does not reach body cells as it should. With insufficient oxygen to accept electrons at the end of miotchondrial electron transfer chains, too many free radicals form. This damages the mitochondriaand the cells. In 2004, Sarah Kuruvilla studied mitochondria in the heart muscle of TF patients. Some of her results are shown in FIGURE 7.13. Patient (age) SPO2(%) Mitochondrial Abnormalities in TF Number Shape Size Broken 1(5) 55 + + 2(3) 69 + + 3(22) 72 + + 4(2) 74 + + 5(3) 76 + + + 6(2.5) 78 + + + 7(1) 79 + + 8(12) 80 + + 9(4) 80 + + 10(B) 83 + + 11(20) 85 + + 12(2.5) 89 + + FIGURE 7.13 Mitochondrial changes in tetralogy of Fallot (TF). (A) Normal heart muscle. Many mitochondria between the fibers provide muscle cells with ATP for contraction. (B) Heart muscle from a person with TF has swollen, broken mitochondria. (C) Types of mitochondrial abnormalities in TF patients. SPO2 is oxygen saturation of the blood. A normal value of SPO2 is 96%. Abnormalities are marked +. 1. In this study, which abnormality was most strongly associated with TF?
Mitochondrial Abnormalities in Tetralogy of Fallot Tetralogy of Fallot (TF) is a genetic disorder in which heart malformations result in abnormal blood circulation, so oxygen does not reach body cells as it should. With insufficient oxygen to accept electrons at the end of miotchondrial electron transfer chains, too many free radicals form. This damages the mitochondriaand the cells. In 2004, Sarah Kuruvilla studied mitochondria in the heart muscle of TF patients. Some of her results are shown in FIGURE 7.13. Patient (age) SPO2(%) Mitochondrial Abnormalities in TF Number Shape Size Broken 1(5) 55 + + 2(3) 69 + + 3(22) 72 + + 4(2) 74 + + 5(3) 76 + + + 6(2.5) 78 + + + 7(1) 79 + + 8(12) 80 + + 9(4) 80 + + 10(B) 83 + + 11(20) 85 + + 12(2.5) 89 + + FIGURE 7.13 Mitochondrial changes in tetralogy of Fallot (TF). (A) Normal heart muscle. Many mitochondria between the fibers provide muscle cells with ATP for contraction. (B) Heart muscle from a person with TF has swollen, broken mitochondria. (C) Types of mitochondrial abnormalities in TF patients. SPO2 is oxygen saturation of the blood. A normal value of SPO2 is 96%. Abnormalities are marked +. 2. What percentage of the TF patients had mitochondria that were abnormal in size?
Match the terms with the best description. ___ mitochondrial matrix a. needed for glycolysis ___ pyruvate b. inner gel ___ NAD+ c. makes many ATP ___ mitochondrion d. product of glycolysis ___ NADH e. reduced coenzyme ___ anaerobic f. no oxygen required
The reactions of _____ take place within the cytosol of eukaryotic cells. (a) glycolysis (b) oxidation of pyruvate (c) the citric acid cycle (d) chemiosmosis (e) the electron transport chain
Cellular respiration is completed in the ______. a. nucleus b. mitochondrion c. plasma membrane d. cytoplasm
The Relative Efficiency of ATP Synthesis in Noncyclic versus Cyclic Photophosphorylation If noncyclic photosynthetic electron transport leads to the translocation of 7 H+/2e- and cyclic photosynthetic electron transport leads to the translocation of 2 H+/e-, what is the relative photosynthetic efficiency of ATP synthesis (expressed as the number of photons absorbed per ATP synthesized) for noncyclic versus cyclic photophosphorylation? (Assume that the CF1CF0-ATP synthase yields 3 ATP/14 H+.)
Figure 7.11 Dinitrophenol (DNP) is an "uncoupler" that makes the inner mitochondrial membrane "leaky" to protons. It was used until 1938 as a weight-loss drug. What effect would you expect DNP to have on the change in pH across the inner mitochondrial membrane? Why do you think this might be an effective weight-loss drug?
Which of the following reaction pathways is not part of the second stage of aerobic respiration? a. electron transfer phosphorylation b. acetyl-CoA formation c. Krebs cycle d. glycolysis e. a and d

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18. The citric acid cycle takes place in a. the chloroplasts b. the cytosol c. the inner mitochondrial membrane d. between the two mitochondrial membranes e. the mitochondrial matrix 40 WIL