6 list all four macromolecules and their building

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6. List all four macromolecules and their building blocks (monomers). The four main classes of organic compounds (carbohydrates, lipids, proteins,  and nucleic acids) that are essential to the proper functioning of all living things are  known as polymers or macromolecules.  There are four classes of  macromolecules ( carbohydrates, lipids, proteins, and nucleic acids ).  Carbohydrates  and lipids are made of only carbon, hydrogen, and oxygen (CHO).  Proteins are made of  carbon, hydrogen, oxygen, and nitrogen (CHON).  Nucleic acids such as DNA and RNA  contain carbon, hydrogen, oxygen, nitrogen, and phosphorus (CHON P). 1. What three elements do the four macromolecules have in common? Carbohydrates  are used by the body for energy and structural support in cell  walls of plants and exoskeletons of insects and crustaceans.  They are made of smaller  subunits called monosaccharides.  Monosaccharides have carbon, hydrogen, and oxygen  in a 1:2:1 ratio.  
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