Lipids are a group of organic molecules that do not dissolve in water and do not consist of long chains of monomers.
A lipid is a biomolecule which is soluble in non-polar solvents but insoluble in polar solvents such as water. Lipids include fats, waxes, oils, hormones as well as specific constituents of membranes. They function as energy-depository molecules and chemical messengers.
A type of lipid known as the triglyceride, is isolated in the form of fat in adipose cells. They serve as the energy-storage warehouse for organisms and also render thermal insulation.
Few lipids like steroid hormones act as chemical messengers between cells, tissues, and organs while others convey signals across biochemical systems inside a single cell.
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