Download to accompany Life: The Science of Biology, Seventh Edition

Figure 7.12 A Chemiosmotic Mechanism Produces ATP
Cytochrome c
reductase
NADH-Q
reductase
Intermembrane
space
Cytochrome c
Ubiquinone
IV
III
I
Mitochondrial
matrix
Cytochrome c
oxidase
II
2H + 1/2
Electronspump
…which
…creating
carried
an imbalance
protons
by NADH
out
across
of
and
theFADH
the
mitochondrial
inner
membrane.
electron
matrix…
carriers…
2 feed
Figure 7.12 A Chemiosmotic Mechanism Produces ATP
Due
to
the
imbalance
protons
This
fuels
return
the
production
to the created
of
by electron
transport…
mitochondrial
ATP
from ADP
matrix
and Pby
i.
passing through an ATP
synthase.
ATP
synthase
High
concentration
of H+
Low
concentration
of H+