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Electron Transport Review - Lehninger Chapter 19

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  • Complexes I and II each transfer electrons to _____
    coenzyme Q
  • All of the following are included in the chemiosmotic theory EXCEPT
    The proton gradient contains the energy to drive the ATP syn
    Oxidative phosphorylation is reversible
    The movement of electrons is coupled to ATP synthesis in the
    The energy in the proton gradient is derived from the energy
  • (MC). Which of the prosthetic groups listed can accept or donate either one or two electrons due to the stability of the semiquinone state?
    NADH
    Rieske Center
    [2Fe-S]
    Coenzyme Q
  • Protons moving through a transmembranc channel by "jumping" through an arrangement of hydrogen-bonded groups are described as moving through a proton ______.
    Wire
  • The cytochromes within complex III all contain _____ groups
    Heme
  • How many cytochrome c's are needed to reduce molecular oxygen to water
    4
  • Which of the following statements about the electron transport chain is NOT correct
    Coenzyme Q accepts electrons from complex I and complex II
    Complex IV accepts electrons from Cytochrome c
    Cytochrome c accepts electrons from complex II
    It is located in the inner mitochondrion membrane
  • Fatigue in iron deficiency anemia may be explained in part by all of the following EXCEPT
    A lack of Coenzyme Q
    A lack of hemoglobin in the blood
    The inability to synthesize ATP
    A lack of cytochromes in the ets
  • Cytochrome c oxidase contains four redox centers: two heme groups and two redox centers containing_______.
    Copper