In this example, it says fatty acid activation requires hydrolysis while we have one ATP going to 1 AMP. How is this equivalent to 2 ATP to 2 ADP? Alright. So, here, we're going to say 1 AMP molecule carries an amount of energy equivalent to 2 ADP molecules. No. That's not true because this one will only have 1 energetic bond. Here, this would have 2 ADP molecules which is 4 energetic bonds so that's not equivalent. Conversion of 1 ATP to 1 AMP requires cleavage of 2 high-energy phosphoanhydride bonds, that is true. Here we have triphosphate and this is only monophosphate. We've lost 2 phosphates here. So that means we'd have to cut 2 high-energy phosphoanhydride bonds to do this.
Hydrolysis of ATP to AMP is accompanied by the oxidation of an electron carrier such as NADH. Here, we're not talking about oxidation in this state. We're talking about basically the cleaving of our phosphoanhydride bonds. This has nothing to do with oxidation. So, this would not work. And then option D doesn't work either. We found out that option B is the most reasonable answer in terms of this.
