A large group of organic compounds that are esters of fatty acids.
lipids are another type of organic molecule remember that organic means they contain carbon c atoms it s not like organic farming at all when you think of fats you should know that they are lipids lipids are also used to make steroids and waxes the lipid bilayer is arranged in two layers of phospholipids with the hydrophilic heads forming the outer edges and the tails forming the interior molecules called lipids have long hydrocarbon chains that determine they way they act they can be fats oils or hormones and even exist in our cell membranes learn more about the chemical structure and biological function of various lipids in this lesson the common feature of these lipids is that they are all esters of moderate to long chain fatty acids acid or base catalyzed hydrolysis yields the component fatty acid some examples of which are given in the following table together with the alcohol component of the lipid the lipid bilayer is important for maintaining the shape of a cell and for selective permeability therefore it is vital for the survival and function of the cell this article explains what the lipid bilayer is and how its structure contributes to cell viability to summarize lipids are biological molecules that are insoluble in water but are soluble in non polar solvents lipids are incredibly good for storing energy and contain twice as much energy as the same weight of carbohydrates or proteins so they are the most energy dense food lipids lipids are important constituent of of the diet because they are a source of high energy value lipids are also important because of the fat soluble vitamins and essential fatty acids found in the fat of the natural food stuffs body fat serves as a very good source of energy it is stored in adipose tissues lipid n 1 biochemistry biochem any of a large group of organic compounds that are esters of fatty acids simple lipids such as fats and waxes or closely related substances compound lipids such as phospholipids usually insoluble in water but soluble in alcohol and other organic solvents organic chemistry any of a group of organic compounds including the fats oils waxes sterols and triglycerides lipids are characterized by being insoluble in water and account for most of the fat present in the human body they are however soluble in nonpolar organic solvents
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lipid definition