GLYCOLYSIS QUIZ

Glycogen synthase

Glycogen hydrolase

Glycogen dehydrogenase

Glycogen semisynthase

Allosteric control of the enzyme activity

Genetic control of the enzyme concentration

Diffusional coupling between adjacent active sites

Covalent modification of the enzyme

activates phosphofructokinase

inhibits fructose-1,6-bisphosphatase

both (b) and (c)

activates fructose-1,6-bisphosphatase

allosteric inhibition by ATP

All of these

allosteric stimulation by ADP

feedback, or product, inhibition by ATP

Dinitrophenol

neither (a) nor (b)

Both (a) and (b)

The Fo base-piece of ATP synthase (without the Fl subunit)

α-1,4 and α-1,6 linkages

α-1,6 linkages

α-1,4 linkage

α-1,4 and β-1,6 linkage

The pathway does not require oxygen

ADP is phosphorylated to ATP via substrate level phosphorylation

The pathway oxidizes two moles of NADH to NAD+ for each mole of glucose that enters

The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose

Phosphofructokinase

All of these

Hexose kinase

Pyruvate kinase

UTP-glucose

glucose-6-P

glucose-1-P

UDP-glucose

None of these

no such phosphate donor exists

the techniques for isolating the phosphate donor are not refined enough

the high-energy phosphate donor is very short-lived and difficult to isolate