What is a function of lipids?

Question

What is a function of lipids?

to dissolve other nutrients

to dilute chemical reactions

to store energy

to control chemical reactions

Answer 1

to store energy

Answer 2

Looks like "to store energy"

http://en.wikipedia.org/wiki/Lipid

Answer 3

Lipids are used as insulation, and lipid derived compounds can be signalling agents for diverse reactions ( like the prostaglandins and leukotrienes. However, lipids are well suited as strorage forms of energy because being non-polar they take up less room than the hydrated glycogen which is a storage form of glucose . Fatty acids , derived from triglycerides in storage can be "burned " using beta oxidation and ultimately the acetyl CoA goes through TCA in a manner like that of pyruvate from glucose . Fatty acids yield considerable more energy that carbohydrate . The most prepnderant fatty acids in our triglycerides are > 14 carbons in length and will geenrate upwards of 112 ATPs per mole compared to glucose ( 36 or 38 depending on shuttle ). Stearic acid, the 18 carbon fatty acid yields 146 ATPs per mole ..

Answer 4

To store energy.  The main biological functions of lipids include energy storage, acting as structural components of cell membranes, and participating as important signaling molecules. For more info on lipids than you could possibly want go to this web site:

http://en.wikipedia.org/wiki/Lipids