The Electron Transport Chain

Review Animations Glycolysis and the Krebs Cycle: http://highered.mcgraw- hill.com/sites/0072507470/student_view0/chapter25/ani mation__how_glycolysis_works.html

Location: Along the inner membrane of the mitochondria (cristae) Involves a number of enzymes embedded in the cristae Products (NADH and FADH2) of glycolysis and the Krebs Cycle are in the cristae

Step 1 NADH and FADH2 give up electrons to a protein (NADH dehydrogenase)

Step 2 The electrons provide energy to move H+ ions across the cristae from the inner compartment to the outer compartment.

Step 3 H+ ions travel through the enzyme ATP synthase, causing the bottom to spin The spinning provides energy to attach a phosphate group onto ADP, creating ATP

To Summarize

Animation http://vcell.ndsu.nodak.edu/animations/etc /movie.htm