1. Electron Transport Chain
-the electron transport chain is the last part of cellular respiration where the most ATP is produced and occurs in the membrane of the mitochondria
-the electron transport chain utilizes all the NADH and FADH2 produced earlier and O2 is used, and H2O is produced

2. Electron Transport Chain
-the basics of the electron chain involve using NADH and FADH2 to move electrons through proteins in the membrane
-this movement of electrons pumps H+ ions from the intermembrane space into the matrix
-during this process, O2 is used and H2O is produced

3. Electron Transport Chain
-eventually, those H+ ions return to where they came from through a molecular motor known as “ATP synthase” which produces a lot of ATP

4. Electron Transport Chain Review
Use these review questions to see how much you remember from today’s lesson:
1. What chemicals are involved in the electron transport chain? What is used up and what is made as a result?
2. What happens with the H+ ions? Where do they go as electrons are transported through the proteins?
3. What happens to all the H+ ions at the end of the electron transport chain?
4. Where is all the ATP created in this whole process?