Question

When a triglyceride is hydrolyzed to form three fatty acids and glycerol, the glycerol can be...

When a triglyceride is hydrolyzed to form three fatty acids and glycerol, the glycerol can be converted to glycerol 3-phosphate and then oxidized to form dihydroxyacetone phosphate, an intermediate of glycolysis. In this reaction, NAD+ is reduced to NADH. If you assume that there is sufficient oxygen to completely oxidize the pyruvate formed from dihydroxyacetone phosphate, what is the maximum amount of ATP formed from the complete oxidation of 1 mol of glycerol?

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Answer #1

Glycerol obtain from hydrolysis of triacylglycerol. Glycerol converts into glycerol phosphate by consuming 1 ATP molecule which laterally convert in to dihydroxy acetone phosphate. Each molecule of glycerol produces 18.5 molecule of ATP per glycerol molecule. Complete oxidation of glycerol gives 6NADH, 1 FADH2 and 3 ATP. So the total net gain of ATP.....

6NADH × 2.5 = 15

1FADH2 × 1.5= 1.5

ATP production at various step = 3

ATP utilization. = 1

So. The total ATP gain is = 18.5 ATP molecules.

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