Lipids
Another word for "fats." Lipids can be more formally defined as substances such as a fat, oil or wax that dissolves in alcohol but not in water. Lipids contain carbon, hydrogen and oxygen but have far less oxygen proportionally than carbohydrates.
They are found in places as diverse as egg yolks and the human nervous system and are important component of plant, animal and microbial membranes
A fatty or waxy are organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent . Its major biological functions involve energy storage, structural component of cell membrane, and cell signaling.
Classification of Lipids according to their CHEMICAL NATURE
Fatty acids- are amphipathic compounds because the carboxyl group is hydrophilic and the hydrocarbon tail is hydrophobic.
->Fatty acid that occurs in a living system normally contains an even number of carbon atoms and the hydrocarbon chain is usually unbranched. ->if there are carbon-carbon double bonds in the chain, the fatty acid is unsaturated; if there are only single bond, the fatty acid is saturated.
Monounsaturated fatty acids are unsaturated fats that have one double-bonded carbon in the molecule and are usually liquid at room temperature, yet can become solid when refrigerated. Foods that contain high concentrations of monounsaturated fatty acids include olive oil, avocados, sesame seeds, almonds and peanuts. Polyunsaturated fatty acids include both omega-3 fatty acids and omega-6 fatty acids. Omega-3 fatty acids include eicosapentaneoic acid, docosahexaneoic acid and alpha-linolenic acid. Coldwater fatty fish, such as salmon, herring and sardines, contain high amounts of eicosapentaneoic acid and docosahexaneoic acid. Alpha-linolenci acid is found in plant sources, such as walnuts, flax seeds and canola oil. Omega-6 fatty acids include linoleic acid, gamma-linolenic acid and arachidonic acid. Omega-6 fatty acids are found in
They are found in places as diverse as egg yolks and the human nervous system and are important component of plant, animal and microbial membranes
A fatty or waxy are organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent . Its major biological functions involve energy storage, structural component of cell membrane, and cell signaling.
Classification of Lipids according to their CHEMICAL NATURE
Fatty acids- are amphipathic compounds because the carboxyl group is hydrophilic and the hydrocarbon tail is hydrophobic.
->Fatty acid that occurs in a living system normally contains an even number of carbon atoms and the hydrocarbon chain is usually unbranched. ->if there are carbon-carbon double bonds in the chain, the fatty acid is unsaturated; if there are only single bond, the fatty acid is saturated.
Monounsaturated fatty acids are unsaturated fats that have one double-bonded carbon in the molecule and are usually liquid at room temperature, yet can become solid when refrigerated. Foods that contain high concentrations of monounsaturated fatty acids include olive oil, avocados, sesame seeds, almonds and peanuts. Polyunsaturated fatty acids include both omega-3 fatty acids and omega-6 fatty acids. Omega-3 fatty acids include eicosapentaneoic acid, docosahexaneoic acid and alpha-linolenic acid. Coldwater fatty fish, such as salmon, herring and sardines, contain high amounts of eicosapentaneoic acid and docosahexaneoic acid. Alpha-linolenci acid is found in plant sources, such as walnuts, flax seeds and canola oil. Omega-6 fatty acids include linoleic acid, gamma-linolenic acid and arachidonic acid. Omega-6 fatty acids are found in