GLYCOLYSIS QUIZ

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

Glycolysis occurs in either direction

only in eukaryotes

only in yeast

in all living organisms

primarily in animals excluding particles

Covalent modification of the enzyme

Diffusional coupling between adjacent active sites

Genetic control of the enzyme concentration

Allosteric control of the enzyme activity

ATP and ADP

AMP and Pi

Citrate and ATP

ATP and PEP

1000 kcal

7.3 kcal

760 kcal

76 kcal

Both (a) and (b)

neither (a) nor (b)

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

Dinitrophenol

ADP

a concentration gradient across a membrane

NAD+

ATP

removes water from a double bond

removes phosphate groups of substrates

uses NADH to change the oxidation state of the substrate

uses ATP to add a phosphate group to the substrate

activates fructose-1,6-bisphosphatase

both (b) and (c)

activates phosphofructokinase

inhibits fructose-1,6-bisphosphatase

more products will be formed

the gibbs free energy will be negative

the gibbs free energy will be positive

both (b) and (c)