Chapter 24, Problem 22PS

(a)

Interpretation Introduction

Interpretation:

The structures of testosterone and estradiol has to be compared.

Concept introduction: Steroids are an example of lipids. They are biologically active organic compounds and are insoluble in water and soluble organic solvents. Example of steroids includes testosterone, estradiol, and cholesterol.

All steroids have common $4$ ring structure shown as below,

(b)

Interpretation Introduction

Interpretation:

The given two structures has to be explained as steroids.

Concept introduction: Steroids are an example of lipids. They are biologically active organic compounds and are insoluble in water and soluble organic solvents. Example of steroids includes testosterone, estradiol, and cholesterol.

All steroids have common $4$ ring structure shown as below,