AP BIOLOGY

Detailed explanation-1: -A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.

Detailed explanation-2: -Lipids are fatty, waxy, or oily compounds that are soluble in organic solvents and insoluble in polar solvents such as water. Lipids include: Fats and oils (triglycerides) Phospholipids.

Detailed explanation-3: -Lipids that are important to our discussion include fats and oils (triglycerides or triacyglycerols), fatty acids, phospholipids, and cholesterol. Fats and oils are esters of glycerol and three fatty acids.

Detailed explanation-4: -Fats, oils, and waxes are all examples of lipids. There are lots of lipids, but they all share the trait of being at least partially hydrophobic (meaning they won’t mix with water). Water molecules are polar because they have positive and negative ends, rather like little magnets.

Detailed explanation-5: -A wax is a simple lipid which is an ester of a long-chain alcohol and a fatty acid. The alcohol may contain from 12-32 carbon atoms. Waxes are found in nature as coatings on leaves and stems.