Catabolism of fatty acids stimulates gluconeogenesis in all of the following ways EXCEPT: By contributing to the...

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Biology

Catabolism of fatty acids stimulates gluconeogenesis inall of the following ways EXCEPT:
By contributing to the production of NADH
By providing carbons for the glucose skeleton
By activating pyruvate carboxylase
By contributing to the production of ATP
By producing Acetyl-CoA
55. [NADPH/NADP+] is maintained at a high level in cellsprimarily by:
Lactate dehydrogenase
The combined actions of glucose -6 phosphate dehydrogenase andgluconolactonase
The action of the electron transport chain
Shuttle mechanisms as the Î±-glycerophosphate dehydrogenaseshuttle
The combined actions of transketolase and transaldolase
If a cell requires more ribose-5-phosphate thanNADPH:
Only the first phase of the pentose phosphate pathway wouldoccur
Glycolytic intermediates would flow into the reversible phaseof the pentose phosphate pathway
There would be sugar interconversions but no net release ofcarbons from glucose-6- phosphate
The equivalent of the carbon atoms to glucose-6-phosphate wouldbe released as 6CO₂
Only part of this need could be met by the pentose pathway andthe rest would have to be supplied by another pathway.

Answer & Explanation Solved by verified expert

3.8 Ratings (623 Votes)

1 Correct answer is A Explanation The high concentration of NADH inhibits gluconeogenesis by preventing the oxidation of lactate to pyruvate In fact the high concentration of NADH will cause the reverse reaction to predominate and lactate will accumulate So it does not stimulate gluconeogenesis B is wrong answer because it has written By providing carbons for the glucose skeleton which is correct statement C is wrong answer because it has written By activating pyruvate carboxylase which is correct statement D is wrong answer because it has written By contributing to the production of ATP which is correct statement E is wrong answer See Answer

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