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

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

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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
Allosteric control of the enzyme activity
Genetic control of the enzyme concentration
Covalent modification of the enzyme

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