The most important rate limiting enzyme in glycolysis is
A) lactate dehydrogenase.
B) hexokinase.
C) phosphofructokinase.
D) pyruvate kinase.

Question

Quizplus · Accepted Answer

Phosphofructokinase is the most important rate-limiting enzyme in glycolysis because it catalyzes the third step, which is a highly regulated and irreversible step. The enzyme is subject to feedback inhibition by ATP and citrate, and is also activated by AMP. The other enzymes listed are also important in glycolysis, but not the main rate-limiting step.

The Most Important Rate Limiting Enzyme in Glycolysis Is