GLYCOLYSIS QUIZ

glucose-6-P

UTP-glucose

glucose-1-P

UDP-glucose

Hexose kinase

All of these

Phosphofructokinase

Pyruvate kinase

allosteric inhibition by ATP

allosteric stimulation by ADP

All of these

feedback, or product, inhibition by ATP

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

Both (a) and (b)

neither (a) nor (b)

Dinitrophenol

ATP and ADP

ATP and PEP

Citrate and ATP

AMP and Pi

uses NADH to change the oxidation state of the substrate

removes phosphate groups of substrates

removes water from a double bond

uses ATP to add a phosphate group to the substrate

76 kcal

1000 kcal

760 kcal

7.3 kcal

Genetic control of the enzyme concentration

Diffusional coupling between adjacent active sites

Covalent modification of the enzyme

Allosteric control of the enzyme activity

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

None of these

Glycolysis occurs in either direction

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

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

The enzymes of glycolysis only function in one direction