Chapter 14, Problem 24CQ

(a)

Summary Introduction

To explain: The reason why anabolic and catabolic enzymes catalyze near equilibrium reactions.

Concept introduction: The pathways that require energy to construct larger molecule are called anabolic pathways. Whereas the pathways that generate energy by splitting complex molecules into smaller units are called as catabolic pathways.

(b)

Summary Introduction

To explain: The reasons why opposing catabolic and anabolic pathways required different enzymes for catalyzing at least one of the steps.

Concept introduction: The pathways that require energy to construct larger molecule are called anabolic pathways, whereas the pathways that generate energy by splitting complex molecules into smaller units are called as catabolic pathways.