Glycolysis
Fructose-2,6-bisphosphate

activates fructose-1,6-bisphosphatase
activates phosphofructokinase
both (b) and (c)
inhibits fructose-1,6-bisphosphatase

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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?

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

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Glycolysis
Why does the glycolytic pathway continue in the direction of glucose catabolism?

Glycolysis occurs in either direction
There are essentially three irreversible reactions that act as the driving force for the pathway
High levels of ATP keep the pathway going in a forward direction
The enzymes of glycolysis only function in one direction

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