| Lipids | |||||||||||||||
| The Structure and Function of Lipids | |||||||||||||||
Fats Fats are composed of fatty acids and glycerol. Fatty acids consist of a long chain of carbons with a carboxyl group at one end. Depending on their structure, fatty acids can be saturated or unsaturated. While fats have been denigrated to the point that many believe that fat should be eliminated from the diet, fat serves many useful purposes. Fats store energy, help to insulate the body and cushion and protect organs.
Phospholipids While fats are typically composed of three fatty acids, phospholipids have two fatty acids. Phospholipids are a major component of cell membranes.
Steroids Steroids have a carbon backbone that consists of four fused ring-like structures. Common examples of steroids include estrogen, testosterone and cholesterol.
Other Lipids There are also a number of other lipid types, including prostaglandins, certain types of pigments and waxes. Share Your Opinions Have questions about lipids? Come on over to the Biology Forum and share your thoughts, opinions and feelings. Until next time... |
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