dxtxpx
Forum Guru
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The complete beta oxidation of palmitic acid would have a net yield of how many ATP molecules?
a) 135
b) 129
c) 122
d) 110
e) 106
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| peekay
Forum Guru
Topics: 102
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this is tough one and require lots of additiona and subtraction. in usmleii am guessing this one so my guess would be my favorit "D"
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| dxtxpx
Forum Guru
Topics: 259
Posts: 1,233
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correct answer is B
yeah this is mathematical, not my favorite one either
The oxidation of lipids produces more ATP per gram than Carbohydrates or proteins. For each two carbon fragment produced, one acetyl CoA (12ATP) is produced. Thus, the acetyl CoA from palmitic acid yields 96 ATP. In addition, 7 equivalents of reduced flavoprotein (2ATP/equivalent) and 7 NADH (3 ATP/equivalent) are produced by palmitic acid [(7 x 2)+(7 x 3)=35],
yielding 96+35=131. Two ATP equivalents are consumed in the production of palmitoyl CoA from palmitic acid, yielding 129 net ATP
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| krsma
Forum Elite
Topics: 40
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how long is palmitic acid again, how many carbons :?:
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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16 carbons right ?
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| krsma
Forum Elite
Topics: 40
Posts: 227
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thanks, now I understand the calculation, and it's correct
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