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Chapter-06 Chemistry of Lipids

BOOK TITLE: Self Assessment and Review of Biochemistry

Author
1. Perumcheril Rebecca James
ISBN
9789386322401
DOI
10.5005/jp/books/14226_7
Edition
3/e
Publishing Year
2018
Pages
21
Author Affiliations
1. Government Medical College, Calicut, Kerala, India, Government Medical College, Kozhikode, Kerala, India
Chapter keywords
Lipid, biomembrane, fatty acid, omega classification, triacylglycerol, phospholipid, glycolipid, essential fatty acid, carbohydrate, protein

Abstract

This chapter seeks to familiarize the readers with chemistry of lipids. Lipids are heterogenous group of compounds relatively insoluble in water and freely soluble in nonpolar organic solvents like ether and chloroform. Unlike carbohydrates and proteins, they are not chemically related, but they are physically related. Lipids are not true polymers, but a mixture of chemically unrelated substances. This chapter presents a brief discussion on classification of lipids, fatty acids, omega classification of fatty acid, triacylglycerol, phospholipids, glycolipids, and biomembranes. Fatty acids are aliphatic carboxylic acid. The fatty acids that are required by humans, but are not synthesized in the body hence need to be supplied in the diet are known as essential fatty acid (EFA). Membranes are sheet like structures that form closed boundaries between different compartments. Membranes consist mainly of lipids and proteins. At the end of the chapter, multiple choice questions are also given along with their explanatory answers.

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