BIOCHEMISTRY-ACHIEVE (1 TERM)
9th Edition
ISBN: 9781319402853
Author: BERG
Publisher: MAC HIGHER
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Chapter 17, Problem 44P
Interpretation Introduction
Interpretation:
The significance of oxaloacetate regeneration at the end of each turn of the TCA cycle.
Concept introduction:
The citric acid cycle (TCA) is a catabolic process. It is a series of
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Describe the advantage of regenerating oxaloacetate at the end of each turn of the citric acid cycle.
give five biological effects of disorders of the citric acid cycle
If glutamate were labeled with C-14 at the delta-carbon and added via transamination to the citric acid cycle to produce alpha-ketoglutarate, how long would it take for the compounds containing C-14 to be reduced by 25% (assume 10 seconds per turn of the cycle)?
Chapter 17 Solutions
BIOCHEMISTRY-ACHIEVE (1 TERM)
Ch. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Prob. 10P
Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Prob. 13PCh. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Prob. 18PCh. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - Prob. 22PCh. 17 - Prob. 23PCh. 17 - Prob. 24PCh. 17 - Prob. 25PCh. 17 - Prob. 26PCh. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - Prob. 29PCh. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - Prob. 34PCh. 17 - Prob. 35PCh. 17 - Prob. 36PCh. 17 - Prob. 37PCh. 17 - Prob. 38PCh. 17 - Prob. 39PCh. 17 - Prob. 40PCh. 17 - Prob. 41PCh. 17 - Prob. 42PCh. 17 - Prob. 43PCh. 17 - Prob. 44P
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- Define GLUCONEOGENESIS. Give three reasons why is gluconeogenesis important in the Cori cycle?arrow_forwardExplain the efficiency of using the citric acid cycle to oxidize acetyl CoA.arrow_forwardExplain why the degradation of odd-chain fatty acids can boost the activity of the citric acid cycle.arrow_forward
- How many turns of the citric acid cycle are implicated in accounting for the net oxidation of one (1) mole of fructose to carbon dioxide and water?arrow_forwardDescribe in detail the structure of the pyruvate dehydrogenase complex.arrow_forwardWhich one of the five steps of the pyruvate dehydrogenase complex reaction is most likely to be metabolically irreversible? Explain.arrow_forward
- Discuss the assertion that the Citric acid cycle is central for metabolism.arrow_forwardBriefly describe the dual role of lipoic acid in the pyruvate dehydrogenase complexarrow_forwardAlthough molecular oxygen (O2) does not participate directly in any of the reactions of the citric acid cycle, the cycle operates only when O2 is present. Explain this observation.arrow_forward
- Identify the enzymes that are considered rate limiting in glycolysis and the citric acid cycle.arrow_forwardDescribe the Pyruvate Dehydrogenase Complex.arrow_forwardPerform a pyruvate dehydrogenase reaction and a single turn of the citric acid cycle using an oxaloacetate molecule uniformly labeled with 18O and one pyruvate molecule uniformly labeled with 14C. Highlight the fate of all radioactively labeled atoms when complete.arrow_forward
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