Chapter 17, Problem 17.66QP

Interpretation Introduction

Interpretation:

The structure lecithin molecule structure should be drawn from arachidic acid.

Concept Introduction:

Fatty acids are organic molecules that consist of a carbon chain with a carboxyl group at one end.

A carboxyl group is a carbon atom, two oxygen atoms and a hydrogen atom.

The carboxyl group of a fatty acid will readily react with a hydroxyl group of glycerol, it is called glycerides.

Phosphatidate: Fatty acids are esterified to hydroxyl on $C_{1}and{C}_2$ and another group $C_3$ hydroxyl is esterified to phosphatidate.