Page 160 - The Miracle in the Cell
P. 160
THE MIRACLE IN THE CELL
Figure 8.4
Inner membrane Cytoplasm
Outer Outer
compartment membrane
Inner compartment
of mitochondria
Inner membrane
(b)
Pyruvic acid
from cytoplasm
Electron
NADH transport
Acetyl CoA system
FADH 2
Krebs NADH
cycle
ATP
H +
MANY ATP 2e
H 2 O O 2
ATP synthetase
enzyme
Inner Outer
(a) compartment compartment
Figure 8.5
(c)
Figures 8.4 and Figure 8.5 place. NAD and FAD are converted
The functional compartments of the into NADH and FADH2 by reacting
mitochondrion with H+ and electrons. These are sent
a) Mitochondrion from the pancreatic to the transport system in the inner
cell of a bat membrane. The concentration of H+
b) The membrane in the inner com- ions and electric charge changes as a
partment of the mitochondrion result of the processes that take place
divides up the organelle into two in the third stage. As a result of these
regions. changes and the effect of the ATP
c) The inner region is where the sec- enzyme (ATP synthetase), ATP is pro-
ond stage of aerobic respiration duced.
(including the Krebs cycle) takes
158