Certain fatty acids have one or more double bonds in their molecules

Certain fatty acids have one or more double bonds in their molecules

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Certain fatty acids have one or more double bonds in their molecules. Fats that include these  molecules are  unsaturated fats . Other fatty acids have no double bonds. Fats that include these fatty  acids are  saturated fats . In most human health situations, the consumption of unsaturated fats is  preferred to the consumption of saturated fats.  Fats stored in cells usually form clear oil droplets called  globules  because fats do not dissolve in  water. Plants often store fats in their seeds, and animals store fats in large, clear globules in the cells  of adipose tissue. The fats in adipose tissue contain much concentrated energy. Hence, they serve 
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Unformatted text preview: as a reserve energy supply to the organism. The enzyme lipase breaks down fats into fatty acids and glycerol in the human digestive system. Proteins Proteins, among the most complex of all organic compounds, are composed of amino acids (see Figure 3 ), which contain carbon, hydrogen, oxygen, and nitrogen atoms. Certain amino acids also have sulfur atoms, phosphorous, or other trace elements such as iron or copper. Figure 3 The structure and chemistry of amino acids. When two amino acids are joined in a dipeptide, the —OH of one amino acid is removed, and the —H of the second is removed. A dipeptide bond (right) forms to join the amino acids together....
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