lecture notes-biochemistry-3-Lipids

lecture notes-biochemistry-3-Lipids - Lipids Lipids are...

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Lipids Lipids are energy storage in cell membrane and regulators of cell metabolism. Lipids are hydrophobic biological compounds that are insoluble in water, but soluble in nonpolar solvent such as benze, chloroform and ether. They are present in the nonaqueous biological phase such as plasma membrane . Cells can alter the mix of lipids in their membrane to compensate for changes in temperature or to increase their tolerance to the presence of chemical agents such as ethanol.
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Lipids Fatty Acids : The major component in most lipids is made of a straight chain of hydrophobic hydrocarbon group, with a carboxyl group (hydrophilic) at the end. A typical saturated fatty acid has the form of CH 3 -(CH 2 )n –COOH Where n is typically between 2 and 20, such as acetic acid CH 3 COOH. A typical unsaturated fatty acid contain double –C=C- , or triple bonds on the hydrocarbon chain, such as Oleic acids: CH 3 -(CH 2 ) 7 -HC=CH-(CH 2 ) 7 -COOH
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Fats are lipids that are esters of fatty acids with glycerol. glycerol
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lecture notes-biochemistry-3-Lipids - Lipids Lipids are...

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