What is the function of electron transport?
A. To oxidize NADH and FADH2 (ultimately by O2) and create a high energy state (a proton gradient) in mitochondria.
B. To hydrolyze ATP.
C. To carry out beta-oxidation of fatty acids.
D. To synthesize glucose from pyruvate.
E. To reduce NAD(+) to NADH and FAD to FADH2