Chapter 24, Problem 24.103EP

Interpretation Introduction

Interpretation: To determine the compound that contains the lost carbon atom from glucose (a hexose) in its conversion to ribose (a pentose).

Concept introduction: The pentose phosphate pathway is defined as the metabolic pathway in which NADPH, $\text{ribose 5}-\text{phosphate}$, and other sugar phosphates are produced from $\text{glucose 6}-\text{phosphate}$.

Pentose phosphate pathway is a two-stage metabolic pathway. The first stage of phosphate pentose pathway is the oxidative stage and the second stage is a non-oxidative stage.

Hexose is a monosaccharide that contains six carbon atoms and pentose is a monosacchride that contains five carbon atoms.