Chapter 9, Problem 18P

Interpretation Introduction

Interpretation:

The number of phospholipid molecules found in a typical fenced area of local diffusion is to be estimated.

Concept introduction:

A lipid which contains a platform molecule, to which one or more fatty acids and a phosphate group are attached, is known as phospholipid. The classification of lipids on the basis of biochemical function is as follows:

• Energy-storage lipids. Example: triacylglycerols.
• Membrane lipids. Examples: phospholipids, sphingolipids and cholesterol.
• Emulsification lipids. Example: bile acids.
• Messenger lipids. Example: steroid hormones and eicosanoids.
• Protective-coating lipids. Example: biological waxes.