Phosphofructokinase is the key enzyme of______________?
Correct answer: A. Glycolysis
- A. Glycolysis
- B. Gluconeogenesis
- C. Beta oxidation
- D. TCA cycle
Explanation
Phosphofructokinase-1 catalyses the major rate-limiting and committed step of glycolysis, converting fructose-6-phosphate to fructose-1,6-bisphosphate. It is therefore the key regulatory enzyme of glycolysis.
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