Hi, Thanks for responding so promptly, I had actually done that, but I didn’t find the answer I was looking for. I understand that FADH2 results in 1.5 ATP molecules per electron pair and NADH results in formation of about 2.5 molecules of ATP, what I want to know is how much ATP is used when you use NADPH in a reduction step (for example in the oxidation of linoleic acid which as 18 carbons and 2 double bonds. Also on another note, for every acetyl-CoA produced you get 10 ATP, do you know if you get any ATP for the production of Succinyl-CoA, it is one of the end products of oxidation of an odd-number fatty acid (for example: propionate, 3 carbons, no double bonds). Thanks for your time.