compounds called fatty acids. Fats are used in living things as parts of biological membranes and as chemical messengers. There are three kinds of lipids, the saturated, unsaturated, and the polyunsaturated lipids. (Prentice Hall Biology textbook pg. 46). Lipids are made from glycerol and fatty acids. Foods that have lipids are cheese, walnuts, butter, and beef. Proteins are molecules that are made of amino acids. They are a class…
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