Chapter 15, Problem 15.55E

Interpretation Introduction

(a)

Interpretation:

The structure of glyceraldehyde is to be shown.

Concept introduction:

Monosaccharides are the simplest form of sugars. The monosaccharide cannot be hydrolysed into simpler units. Examples of monosaccharides are glucose and fructose. When monosaccharides are joined by glycosidic linkages, higher sugars are obtained.

Interpretation Introduction

(b)

Interpretation:

The reason for a $2^{-}$ charge on $\text{glyceraldehyde-3-phosphate}$ is to be stated.

Concept introduction:

The $3-\text{phospho}$ derivative of glyceraldehyde is known as $\text{glyceraldehyde-3-phosphate}$. $\text{Glyceraldehyde-3-phosphate}$ is an aldotriose. It is composed of an aldehyde group, a hydroxyl group, a phosphate group and three carbon atoms.