Glycolysis and the Krebs Cycle
We did not explicitly develop glycolysis and energy metabolism pages, but there
is a wealth of good information on these topics that other people have
developed, and this directory allows to to get to those sources. Note that
there won't be links from these other sites back to the MIT Biology
Hypertextbook. Therefore, use the "Back" key to return to the MIT Biology
Hypertextbook.
- A nice, quick summary of glycolytic metabolism (obtaining
energy from glucose), done at the University of Virginia.
-
A clear chart of the intermediates of glycolysis,
also done at the University of Virginia.
- A beautiful diagram of the electron transport chain. Note
that this diagram is somewhat unclear. As the electron is passed on from
protein to protein in the membrane, the energy of the electron is used to
pump an H+ from the inside to the outside, creating a gradient of H+. The
H+ then gets back into the inner mitochondrion by passing through ATP
synthetase (shown). This is how the energy of the electron is used to make
ATP.
- A summary of how much energy (counted in molecules of ATP)
is obtained from metabolizing one molecule of glucose, also from the
University of Virginia.
- There is also a more complicated but more informative set of sites put
together by the Database of Enzymes and Metabolic Pathways on
Glycolysis and
Metabolism of TCA (the Krebs cycle) intermediates.
- Carbohydrates
is a nice page at the Univ. of North Carolina that discusses the human
biology of eating sugars and starches.
-
Glycolysis/Respiration Problems
hyperbio@mit.edu