What Is Four Macromolecules?
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Four macromolecules are carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates are molecules composed of chains of simple sugars, and are used for energy and structural support. Proteins are complex molecules composed of amino acids, and are used for cell structure and enzyme activity. Lipids are molecules composed of fatty acids and glycerol, and are used for energy storage, insulation, and cell membrane structure. Nucleic acids are molecules composed of nucleotides, and are used for storing and transmitting genetic information.