GLYCOLYSIS QUIZ

activates phosphofructokinase

activates fructose-1,6-bisphosphatase

inhibits fructose-1,6-bisphosphatase

both (b) and (c)

the liver by phosphorolysis

both (a) and (b)

the muscles by phosphorolysis

the muscles by hydrolysis

Allosteric control of the enzyme activity

Diffusional coupling between adjacent active sites

Genetic control of the enzyme concentration

Covalent modification of the enzyme

pyruvate kinase

glyceraldehyde-3 -dehydrogenase

phosphoglycerate kinase

Phosphofructokinase

Hexose kinase

All of these

Phosphofructokinase

Pyruvate kinase

α-1,4 and β-1,6 linkage

α-1,4 linkage

α-1,6 linkages

α-1,4 and α-1,6 linkages

allosteric inhibition by ATP

allosteric stimulation by ADP

feedback, or product, inhibition by ATP

All of these

There are essentially three irreversible reactions that act as the driving force for the pathway

Glycolysis occurs in either direction

High levels of ATP keep the pathway going in a forward direction

The enzymes of glycolysis only function in one direction

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

ATP and ADP

Citrate and ATP

ATP and PEP

AMP and Pi