Arrange the given list of pyruvate oxidation in the correct order.
1) Pyruvate enters the mitochondria.
2) Pyruvate loses a carbon atom, as well as some oxygen atoms in the form of carbon dioxide, resulting in a 2 carbon acetyl molecule.
3) Acetyl CoA moves to the citric acid cycle.
4) Acetyl is oxidized by NAD.
5) Coenzyme A attaches to the acetyl molecule.