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Quiz

Bio 110 Final: Chapter 7

Usuário eliminado 10 perguntas

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Perguntas do quiz (10)

  1. 1Which of the following pathways occurs in the cytosol?
    1. AGlycolysis
    2. BBreakdown of pyruvate to an acetyl group
    3. Ccitric acid cycle
    4. Doxidative phosphorylation
    5. Eall of the above
  2. 2The net products of glycolysis are
    1. A6 CO2, 4 ATP, and 2 NADH
    2. B2 Pyruvate, 2 ATP, 2 NADH
    3. C2 pyruvate, 4 ATP, 2 NADH
    4. D2 pyruvate, 2 GTP, 2 CO2
    5. E2 CO2, 2 ATP, glucose
  3. 3During glycolysis, ATP is produced by
    1. Aoxidative phosphorylation
    2. Bsubstrate level phosphorylation
    3. Credox reactions
    4. Dall of the above
    5. Eboth a and b
  4. 4Which organic molecule supplies a two-carbon group to start the citric acid cycle?
    1. AATP
    2. BNADH
    3. Cacetyl CoA
    4. Doxaloacetate
    5. Eboth a and b
  5. 5The ability to diagnose tumors using [18F]-fluorodeoxyglucose (FDG) is based on the phenomenon that most types of cancer cells exhibit higher levels of
    1. Aglycolysis
    2. Bpyruvate breakdown
    3. Ccitric acid metabolism
    4. Doxidative phosphorylation
    5. Eall of the above
  6. 6In the experiment of Racker and Stoeckenius, bacteriorhodopsin was oriented in such a way that it pumped H+ into a vesicle. Each vesicle actually contained many molecules of bacteriorhodopsin. How would the results have been affected if 50% of the bacteriorhodopsin molecules pumped H+into the vesicle and 50% pumped H+ out of the vesicles?
    1. AThe same amount fo ATP would be made in the presence of light, and no ATP would be made in the dark.
    2. BMore ATP would be made in the presence of light, and no ATP would be made in the dark.
    3. CNo ATP would be made in the presence of light, and no ATP would be made in the dark
    4. DNo ATP would be made in the presence of light, but some ATP would be made in the dark.
    5. ESome ATP would be made in both light and dark
  7. 7Certain drugs act as ionophores that cause the mitochondrial membrane to be highly permeable to H+. How would such drugs affect oxidative phosphorylation?
    1. AMovement of electrons down the ETC would be inhibited
    2. BATP synthesis would be inhibited
    3. CATP synthesis would be unaffected
    4. DATP synthesis would be stimulated
    5. EBoth a and b are correct
  8. 8The source of energy that directly drives the synthesis of ATP during oxidative phosphorylation is the
    1. Aoxidation of NADH
    2. Boxidation of glucose
    3. Coxidation of pyruvate
    4. DH+ gradient
    5. Ereduction of O2
  9. 9Compared with oxidative phosphorylation in mitochondria, a key difference of anaerobic respiration in bacteria is that
    1. Amore ATP is made
    2. BATP is made only via substrate-level phosphorylation
    3. CO2 is converted into H2O2 rather than H2O.
    4. Dsomething other than O2 acts as the final electron acceptor of the ETC.
    5. Eb and d
  10. 10When muscle becomes anaerobic during strenuous exercise, why is it necessary to convert pyruvate to lactate?
    1. Ato decrease NAD+ and increase NADH
    2. Bto decrease NADH and increase NAD+
    3. Cto increase NADH and increase NAD+
    4. Dto decrease NADH and decrease NAD+
    5. Eto keep oxidative phosphorylation running

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O usuário eliminou as informações de disciplina Quiz sobre Bio 110 Final: Chapter 7, criado por Usuário eliminado em 13-12-2017.
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Usuário eliminado
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