The Anatomy and Physiology of Lipids Essay

The Anatomy and Physiology of Lipids Essay

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The Anatomy and Physiology of Lipids

When you get up each morning and look outside your window looking out at the beautiful
plants and adorable little animals, have you ever wondered what makes all living things? Lipids are
what help create all the living things we see everyday. Lipids are found in all membranes, mainly
plasma membranes, meaning animals and plants contain lipids. In this paper I will display and
explain the formation of micelles and bi-layers from lipid amphiphilicity. A variety of books were
used to study different types of lipids; the three major components, glycerophospholipids,
sphingolipids, and sterols, and their affects in the cellular and multicultural systems.

Lipids are structural components found in living cells that are either soluble in organic
solvents or insoluble in water.1 These lipid membranes are demonstrated in Singer and Nicolson’s
1972 fluid mosaic model. Lipids are commonly recognized as fats, oils, wax, etc. There are three
major different types of lipids that exist: glycerophospholipids, sphingolipids, and sterols.2
Within each type there are a variety of subtypes.
Glycerophospholipids are commonly referred to as plain phospholipids. Within itself it
contains three components. First it is constructed with a phosphorylated head group, then a three
carbon glycerol backbone, and finally a two hydrocarbon fatty acid chains. The phosphorylated
head group is attached to one of the glycerol hydroxyls with addition to the two hydrocarbon fatty
acid chains bonded to the other two glycerol hydroxyls.3 The purpose for glycerophospholipids is
to construct and or maintain the cell membrane. In a microscopic view of the cell membrane we can
observe that the glyceropho...

... middle of paper ...

Guardiola, Francesc, ed. Cholesterol and Phytosterol Oxidation Products : Analysis, Occurrence,
and Biological Effects. New York: AOCS P, 2002.
Hooper, Nigel, and David Hames. Instant Notes in Biochemistry. New York: Taylor & Francis
Group, 2005.
Kreuzer, F. and J.F.G. Slegers. Biomembranes Vol. 3 : Passive Permeability of Cell Membranes.
New York; Plenum Press, 1972.
"Lipid bilayer." Wikipedia. 24 July 2008 .
"Micelle." Wikipedia. 26 July 2008 .
Mukherjee, Kumar D. CRC Handbook of Chromotography Vol. 3 : Analysis of Lipidsseries.
New York: CRC P, 1993.
Perkins, Edward G. Analyses if Fats, Oils and Lipoproteins. Illinois: American Oil Chemists’
Society, 1991.
Vance, Deenis E, and Jean E. Vance. Biochemistry of Lipids, Lipoproteins and Membranes.
Amesterdam: Elsevier, 1991.

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