Chapter 21, Problem 42A

Interpretation Introduction

Interpretation:

Four groups of steroids should be discussed.

Concept introduction:

The steroid is categorized in the lipid. They are insoluble in water. It is used for signaling purposes. They are good for energy storage. The steroids are organic compounds containing four carbon rings.

Answer to Problem 42A

The four carbon rings are fused and some other functional groups are attached to form a steroid structure.

Explanation of Solution

The special character of steroids is the fuse ring system of three cyclohexanes and one cyclopentane in a fused ring system. There are a variety of functional groups attached to the carbon rings. The other functional group may be carbonyl or alcohol, etc.

There is a given example of steroids containing four fused carbon rings with other functional groups.

Conclusion

There is the presence of the four-carbon rings of cyclohexanes or cyclopentane in the steroid. There is another functional group is attached to the carbon rings.