Chapter 21, Problem 30A

A

Interpretation Introduction

Interpretation:

The straight line structure of glucose needs to be drawn.

Concept Introduction:

A monosaccharide is a simple carbohydrate consisting of only one sugar unit in their structures. Simple monosaccharides are pentose and hexoses sugar. Glucose and galactose both the monosaccharides represent hexoses sugar structure with six carbons.

Answer to Problem 30A

The straight line structure of glucose is given as −

  

Explanation of Solution

Glucose is the example of a monosaccharide containing the aldehyde as a functional group at the first carbon. One hydroxyl group is present on the left-hand side at third carbon and the rest of all four hydroxyl groups are present on the right-hand side.

  

B

Interpretation Introduction

Interpretation:

The straight line structure of ribose needs to be drawn.

Concept Introduction:

A monosaccharide is a simple carbohydrate consisting of only one sugar unit in their structures. Simple monosaccharides are pentose and hexoses sugar. Ribose and ribulose are pentose sugar-containing five-carbon.

Answer to Problem 30A

The straight line structure of ribose is given as −

  

Explanation of Solution

Ribose is the example of a monosaccharide with five-carbon, and ribose contains the aldehyde as a functional group at the first carbon. Three hydroxyl groups are present at the right-hand side, and one is attached to the fifth carbon.

  

C

Interpretation Introduction

Interpretation:

The straight line structure of ribulose.

Concept Introduction:

A monosaccharide is a simple carbohydrate consisting of only one sugar unit in their structures. Simple monosaccharides are pentose and hexoses sugar. Ribose and ribulose are pentose sugar-containing five-carbon.

Answer to Problem 30A

The straight line structure of ribulose is given as −

  

Explanation of Solution

Ribulose is the example of monosaccharide with five-carbon, ribose containing the ketone as a functional group at the second carbon. There are two hydroxyl groups are present at the right-hand side, and two attached with first and fifth carbon.

  

D

Interpretation Introduction

Interpretation:

The straight line structure of galactose.

Concept Introduction:

A monosaccharide is a simple carbohydrate consisting of only one sugar unit in their structures. Simple monosaccharides are pentose and hexoses sugar. Glucose and galactose both the monosaccharides represent hexoses sugar structure with six carbons.

Answer to Problem 30A

The straight line structure of galactose is given as −

  

Explanation of Solution

Galactose is the example of a monosaccharide containing the aldehyde as a functional group at the first carbon. There are two hydroxyl groups present on the left-hand side at third and fourth carbon and the rest of the two hydroxyl groups are present on the right-hand side.