Glycolysis
The active form of glycogen phosphorylase is phosphorylated, while the dephosphorylation of which active form occurs?

Glycogen dehydrogenase
Glycogen hydrolase
Glycogen semisynthase
Glycogen synthase

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Glycolysis
In glycolysis, ATP is formed by the transfer of a high-energy phosphate from 1,3-bisphosphoglycerate to ADR No such high-energy phosphate donor has ever been isolated in mitochondria because

None of these
the techniques for isolating the phosphate donor are not refined enough
no such phosphate donor exists
the high-energy phosphate donor is very short-lived and difficult to isolate

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Glycolysis
Which of the following is not a mechanism for altering the flux of metabolites through the rate-determining step of a pathway?

Diffusional coupling between adjacent active sites
Genetic control of the enzyme concentration
Allosteric control of the enzyme activity
Covalent modification of the enzyme

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