Quiz 17 Metabolic Pathways and Energy Production

Karen Timberlake

Answer the questions below and then click "submit" to send your answers.

  1. The storage form of energy that connects the energy-producing reactions with energy-requiring reactions is
  2. Your answer:
    AMP
    Pi
    ADP
    ATP


  3. FAD(flavin adenine dinucleotide)is the hydrogen acceptor when
  4. Your answer:
    a reduction produces a C-C bond
    an oxidation produces a C=C double bond
    an oxidation removes hydrogen to produce a C=O double bond
    an oxidation adds oxygen to produce a C=O double bond


  5. The reaction the converts glucose to two 3-carbon compounds is called
  6. Your answer:
    citric acid cycle
    glycolysis
    chemiosmosis
    electron transport chain


  7. The coenzyme NAD+ is reduced in the reaction of
  8. Your answer:
    citrate to isocitrate
    succinate to fumarate
    pyruvate to lactate
    malate to oxaloacetate


  9. The coenzymes produced from one turn of the citric acid cycle are
  10. Your answer:
    three NADH + H+ and one FADH2
    one GTP
    two CO2
    All of the above.


  11. In the citric acid cycle, how many molecules of CO2 are produced?
  12. Your answer:
    3
    6
    2
    1


  13. The number of ATP molecules produced from one turn of the citric acid cycle is
  14. Your answer:
    2 ATP.
    6 ATP
    9 ATP
    12 ATP


  15. When glucose is oxidized to two pyruvate molecules, the total number of ATP molecules that can be produced is
  16. Your answer:
    4 ATP
    8 ATP
    2 ATP
    6 ATP


  17. In the electron transport chain, which of the following is a mobile electron carrier?
  18. Your answer:
    CoQ
    cytochrome b
    cytochrome a
    FMN


  19. Which of the following represents an oxidation reaction in the electron transport chain?
  20. Your answer:
    cyt c (Fe3+) to cyt c (Fe2+)
    cyt b (Fe2+) to cyt b (Fe3+)
    Q to QH2
    FMN to FMNH2


  21. How many ATP molecules are formed for each FADH2 that enters the electron transport chain?
  22. Your answer:
    none
    one
    two
    three


  23. For the complete oxidation of one glucose molecules, the total number of ATP molecules possible is
  24. Your answer:
    6 ATP
    12 ATP
    24 ATP
    36 ATP


  25. In chemiosmosis, the enzyme involved with the production of ATP is
  26. Your answer:
    NADH dehydrogenase
    cytochrome c reductase
    cytochrome c oxidate
    ATP synthase


  27. The pumping of protons across the inner mitochondrial membrane
  28. Your answer:
    creates a proton gradient.
    is known as the chemiosmotic model.
    provides energy for the formation of ATP.
    All of the above.


  29. The beta oxidation of stearic acid, an 18 carbon fatty acid, produces
  30. Your answer:
    40 ATP
    148 ATP
    146 ATP
    124 ATP



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