Glycolysis will be adversely affected if …………… is inactivated.
Question and options
Glycolysis will be adversely affected if …………… is inactivated.
- Ligases
- Phosphofructokinase
- Glucose-6-phosphate phosphatases
- Pyruvate dehydrogenase
Answer and explanation
Correct answer: B - Phosphofructokinase
Phosphofructokinase-1 catalyses the committed, rate-limiting step of glycolysis, so inactivating it blocks glycolysis. Pyruvate dehydrogenase acts after glycolysis, and glucose-6-phosphatase works in gluconeogenesis.
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