Page 90 - The Manga Guide to Biochemistry
P. 90
Electron
transport chain
Proton Proton
Alright!
What happens to the electrons
(e-) and protons (H+) that were
"deposited" in NAD+ and FAD?
Let's take a look!
intermembrane electron Cytochrome C ATP inner
space flow Complex III synthase membrane of
mitochondria
Complex I Co Q Complex IV
Matrix
An electron directly enters the electron
transport chain and, as you might guess from
the name, is transported between several
protein complexes.
protons Cytochrome C ATP inner
collected synthase membrane of
in the inter mitochondria
membrane
space
intermembrane
space
Complex I
Co Q Complex III
Matrix
Complex IV
While this electron (e-) is successively transferred, interesting...
the proteins undergo various changes. As a
result, protons (H+) move from the mitochondrial
matrix to the intermembrane space (between the
inner and outer membranes). Three "pumps" push
these protons into the intermembrane space.
