Question

Which reaction steps are irreversible and require a different enzyme in gluconeogenesis than in glycolysis

Answer 1

Answer:

The following two steps:  

1. pyruvate kinase
2. hexokinase

Explanation:

Many of the enzymes play a common role between the processes of gluconeogenesis and glycolysis. The reactions that are irreversible in the case of glycolysis get bypassed by different routes undertaken in gluconeogenisis.