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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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- Fall '07
- Fatty Acids