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Lipid & Protein Metabolism

1) The catabolism of fatty acids is known as "the B-oxidation of fatty acids." WHY?

2) How many molecules of FADH2 and of NADH are produced in one spiral of the fatty acid oxidation?

3) How many times around the spiral would be needed to complete the B-oxidation of myristic acid?

4) How many molecules of ATP will be obtained, overall, when one molecule of myristic acid is catabolized in this way, including the ATP yield from the Krebs's Cycle. HOW WAS THIS CALCULATED?

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1) The catabolism of fatty acids is known as "the B-oxidation of fatty acids." WHY?

Response: It is called beta-oxidation because each round of oxidation results in the oxidation of the beta carbon. What's the beta carbon? If we consider the structure of a fatty acid, we notice that there are two distinct ends, the -COOH end and the methyl end. The carbon in the -COOH group is the first carbon in the molecule. The carbon next to it is the alpha carbon while the next carbon past that one is called the beta carbon. Look at what happens during beta oxidation. The beta carbon goes from CH2 to C=O. That's oxidation.

2) How many molecules of FADH2 and of NADH are produced in one spiral of the fatty acid ...

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