GLYCOLYSIS QUIZ

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

Glycolysis occurs in either 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

cytosol

mitochondrial matrix

intermembrane space

plasma membrane

phosphoglycerate kinase

pyruvate kinase

glyceraldehyde-3 -dehydrogenase

Phosphofructokinase

in all living organisms

primarily in animals excluding particles

only in eukaryotes

only in yeast

7.3 kcal

1000 kcal

76 kcal

760 kcal

the gibbs free energy will be positive

more products will be formed

the gibbs free energy will be negative

both (b) and (c)

activates phosphofructokinase

inhibits fructose-1,6-bisphosphatase

both (b) and (c)

activates fructose-1,6-bisphosphatase

remains in the products of metabolism

is lost as heat

is used to reduce NADP

is stored as fat.

Glycogen semisynthase

Glycogen dehydrogenase

Glycogen hydrolase

Glycogen synthase

Diffusional coupling between adjacent active sites

Covalent modification of the enzyme

Allosteric control of the enzyme activity

Genetic control of the enzyme concentration