Prokaryotic Biology, MCB4403, FSU,
JONES, EXAM 2, Lec 17, Ch. 14
questions and correct answers
Respiration - correct answer ✔✔Electrons passed to inorganic acceptors via an electron
transport chain
Fermentation - correct answer ✔✔Electrons passed to organic acceptors without an electron
transport chain
Proton Motive Force (PMF) - correct answer ✔✔As electrons flow down the ETC, H+ are
pumped across the membrane generating ______.
good, good - correct answer ✔✔Electrons pass from ____ electron donors to ______ electron
acceptors.
1/2 O2 - correct answer ✔✔Strongest electron acceptor
excellent electron donor - correct answer ✔✔NADH and H+
-30.5 (KJ) - correct answer ✔✔Theoretical energy release per ATP hydrolysis. dG= ___ KJ
positive, accept, acceptor, oxidant, oxidizing - correct answer ✔✔Higher reducing potential =
more _____ reducing potential (E) = more likely to ______ electrons = stronger electron
_________ = stronger ________= better _____ agent
, negative, donate, donor, reductant, reducing. - correct answer ✔✔Lower Reducing Potential =
more ____ reducing potential = more likely to _____ electrons = Stronger electron ______ =
stronger __________ = better _______ agent.
membranes - correct answer ✔✔Electron transport occurs on
outside the cell - correct answer ✔✔Electron acceptor usually comes from
Electron acceptor - correct answer ✔✔Needed in large quantities for respiration
captured by the cell - correct answer ✔✔Electron transport energy must be ___ ____ ___ ____.
ETS components. - correct answer ✔✔oxidoreducatase complexes of cytochromes and other
proteins
A proton gradient across the membrane - correct answer ✔✔Energy of electron transport is
captured as
pH gradient, and charge gradient. - correct answer ✔✔2 components of a H+ gradient
Back into the cell - correct answer ✔✔Both components of the H+ gradient in a cell membrane
tend to drive protons ______________________
Out of the cell - correct answer ✔✔Transfer of electrons in ETS pump H+ ______________
uncouplers ( because they uncouple ETS from ATP synthase) - correct answer ✔✔Compounds
that destroy the ETC gradient
JONES, EXAM 2, Lec 17, Ch. 14
questions and correct answers
Respiration - correct answer ✔✔Electrons passed to inorganic acceptors via an electron
transport chain
Fermentation - correct answer ✔✔Electrons passed to organic acceptors without an electron
transport chain
Proton Motive Force (PMF) - correct answer ✔✔As electrons flow down the ETC, H+ are
pumped across the membrane generating ______.
good, good - correct answer ✔✔Electrons pass from ____ electron donors to ______ electron
acceptors.
1/2 O2 - correct answer ✔✔Strongest electron acceptor
excellent electron donor - correct answer ✔✔NADH and H+
-30.5 (KJ) - correct answer ✔✔Theoretical energy release per ATP hydrolysis. dG= ___ KJ
positive, accept, acceptor, oxidant, oxidizing - correct answer ✔✔Higher reducing potential =
more _____ reducing potential (E) = more likely to ______ electrons = stronger electron
_________ = stronger ________= better _____ agent
, negative, donate, donor, reductant, reducing. - correct answer ✔✔Lower Reducing Potential =
more ____ reducing potential = more likely to _____ electrons = Stronger electron ______ =
stronger __________ = better _______ agent.
membranes - correct answer ✔✔Electron transport occurs on
outside the cell - correct answer ✔✔Electron acceptor usually comes from
Electron acceptor - correct answer ✔✔Needed in large quantities for respiration
captured by the cell - correct answer ✔✔Electron transport energy must be ___ ____ ___ ____.
ETS components. - correct answer ✔✔oxidoreducatase complexes of cytochromes and other
proteins
A proton gradient across the membrane - correct answer ✔✔Energy of electron transport is
captured as
pH gradient, and charge gradient. - correct answer ✔✔2 components of a H+ gradient
Back into the cell - correct answer ✔✔Both components of the H+ gradient in a cell membrane
tend to drive protons ______________________
Out of the cell - correct answer ✔✔Transfer of electrons in ETS pump H+ ______________
uncouplers ( because they uncouple ETS from ATP synthase) - correct answer ✔✔Compounds
that destroy the ETC gradient
