Key glycolytic enzymes
Hexokinase & 'c' i.e., Pyruvate kinase

Glycolysis is regulated at 3 steps which are irreversible. These reactions are catalyzed by following key enzymes: (1) Ilexolunase and glucokinase, (2) Phosphofructokinase - I, and (3) Pyruvate kinase.
Phosphofructokinase
Hexokinase
Pyruvate kinase
All of these