How many ATP's are formed from one turn of b oxidation?: (A) 3, (B) 5, (C) 7, (D) 12
Answer is B. Beta oxidation is the process by which fatty acids are processed progressively to release two carbon segments in the form of acetyl CoA. These reactions produce acetyl CoA and 1 molecule of FADH2 and 1 NADH per turn of beta oxidation. 1 NADH yields 3 molecules of ATP and 1 FADH2 yields 2 molecules of ATP releasing a total of 5 molecules of ATP. Beta oxidation of fatty acids occur in the matrix of the mitochondrion. Oxidation of odd carbon fatty acids result in acetyl CoA and propionyl CoA. Ref: Quantitative Human Physiology: An Introduction By Joseph J Feher page 194.