CARBOHYDRATE QUIZ

glycogen phosphorylase and glycogen-debranching enzyme

glycogen phosphorylase and phosphoglucomutase

None of these

glycogen synthase and phosphorylase

NAG4 + NAG2

NAG3 + NAG3

6 glucosamines + 6 acetic acids

NAG3

occurs in the mitochondria

requires biotin

all of the above

involves the fixation of carbon dioxide

Formation of a covalent intermediate at Ser195

The strained conformation of the D sugar

The abnormally high pKa of Glu35

Formation of a covalent intermediate at Asp52

glucose 6 phosphatase

none of these

lactate dehydrogenase

pyruvate carboxylase

(Ser or Thr)-Asn-Ala

Thr-(Asn or Gln)-Ala

Asn-Xaa-(Ser or Thr)

None of these

Activates all cytosolic protein kinases

Acts outside the cell to influence cellular processes

Acts second in importance to AMP

Activates the cAMP-dependent protein kinase

2 ATPs and 1 GTPs per glucose

3 ATPs and 3 GTPs per glucose

3 ATPs and 2 GTPs per glucose

4 ATPs and 2 GTPs per glucose

Acetyl-CoA

Fructose 1,6 bisphosphate

Fructose 2,6 bisphosphate

NAD+

use the same substrate for all of the enzymes in the pathway

use the same enzyme for all of the substrates in the pathway

locate all of the enzymes for a pathway in the same place within the cell

spread the enzymes for a pathway into several different organelles