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Electron Transport Review - Lehninger Chapter 19

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  • Protons moving through a transmembranc channel by "jumping" through an arrangement of hydrogen-bonded groups are described as moving through a proton ______.
    Wire
  • All of the following are included in the chemiosmotic theory EXCEPT
    The proton gradient contains the energy to drive the ATP syn
    The energy in the proton gradient is derived from the energy
    The movement of electrons is coupled to ATP synthesis in the
    Oxidative phosphorylation is reversible
  • (MC). Which of the prosthetic groups listed can accept or donate either one or two electrons due to the stability of the semiquinone state?
    Rieske Center
    Coenzyme Q
    [2Fe-S]
    NADH
  • The cytochromes within complex III all contain _____ groups
    Heme
  • Fatigue in iron deficiency anemia may be explained in part by all of the following EXCEPT
    A lack of cytochromes in the ets
    The inability to synthesize ATP
    A lack of hemoglobin in the blood
    A lack of Coenzyme Q
  • 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
    It is located in the inner mitochondrion membrane
    Cytochrome c accepts electrons from complex II
  • How many cytochrome c's are needed to reduce molecular oxygen to water
    4
  • Complexes I and II each transfer electrons to _____
    coenzyme Q
  • Cytochrome c oxidase contains four redox centers: two heme groups and two redox centers containing_______.
    Copper