This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glycolysis, Subject name: Biochemistry
Phosphofructokinase is the key enzyme of - 
Select and explain. 
A. Glycogenolysis, B. Glvcogenesis, C. Glycolysis, D. TC A cycle
C: Glycolysis
Answer: C: Glycolysis 
Explanation: Ans. is 'c' i.e., Glycolysis [Ref: Lippincott's 5th/e p. 99)ReactionsRate limiting enzymesGlycolysisPhosphofructokinaseGlycogen synthesisGlycogen synthetaseGlycogenolysisGlycogen phosphorylaseTCA cycleIsocitrate dehydrogenaseFatty acid synthesisAcetyl CoA carboxylaseCholesterol synthesisHMG CoA reductaseKetone body synthesisHMG CoA synthaseBile acid synthesis7-a-hydroxylaseCatecholamine synthesisTyrosine hydroxylaseUrea synthesisCarbamoyl transferase