The step that commits the cell to metabolize glucose is catalyzed by
A) hexokinase.
B) phosphoglucomutase.
C) aldolase.
D) phosphofructokinase.

Question

Quizplus · Accepted Answer

Phosphofructokinase (PFK) catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate, a key regulatory step in the glycolytic pathway that commits the cell to metabolize glucose. This enzyme is a major control point in glycolysis and is allosterically regulated by several metabolites.

The Step That Commits the Cell to Metabolize Glucose Is