The glycolytic enzyme hexokinase a phosphorylates

8. The glycolytic enzyme hexokinase
A. phosphorylates glucose.
B. modifies glucose so that it can't be transported out of the cell by glucose transporters.
C. is directly inhibited by ATP.
D. A and B
E. all of the above
ANSWER: D
9. The activity of the glycolytic enzyme phosphofructokinase (PFK) is inhibited by

Name _______________________________________________ 3
10. Fructose-­‑2,6-­‑bisphosphate
11. During the first five reactions (the first stage) of glycolysis 12. In the second five reactions (the second stage) of glycolysis
A. ATP is utilized.
B. ATP is produced.
C. NAD+ is reduced to NADH.
D. A and C
E. B and C
ANSWER: E
13. The end products of the catabolism of one molecule of glucose completely through
glycolysis include
14. Under anaerobic conditions, the major end product of glycolysis can be the substrate
for a fermentation reaction. The reason a fermentation reaction is necessary under
anaerobic conditions is that fermentation