Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425



Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem

. What is a phospholipid? How does the structure of a phospholipid differ from that of a triglyceride? What is the function of the phospholipid lecithin?

Interpretation Introduction


To define the phospholipids and the difference between the triglyceride and phospholipids and the functions of phospholipids lecithin should be determined.

Concept Introduction:

Lipid or fat is composed of a long chain of alkanes or esters from alcohols and fatty acids. Beeswax and paraffin are well known example of lipids. Natural lipids are specifically the esters formed from the esterification of fatty acids and long chain alcohols. Ester of animal wax derived from a various carboxylic acids and alcohols. As they are hydrophobic in nature, lipids and fat prevents water to stick on the surface of plants and animals.


Phospholipid comes under the class of lipids which are the major composition of cell membranes of all human beings. These are the molecules that create lipid bilayer due to the amphiphilic nature. A phospholipid consisting of tail which is hydrophobic in nature while polar head is hydrophilic in nature contains phosphate group.

Phospholipid is lipid made of a glycerol molecule, two fatty acids, and a phosphate group which get esterified with hydroxy of alcohol.

A triglyceride is a fat molecule or an ester obtained from glycerol and three fatty acids...

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