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Unformatted text preview: defined by the molecule’s unique atomic coordinates. 7. Lipids function as storage for energy in cells, assistants for cell signaling, and structural components of cell membranes. 8. The structural units of DNA and RNA are nucleotides, which are composed of a phosphate group, a pentose sugar, and a nitrogenous base. Nucleotides play important roles in both cell signaling and metabolism regulation. 9. RNA, or ribonucleic acid, is a nucleic acid that is transcribed from DNA, and is single stranded. RNA translates nucleic acids into proteins, and messenger RNA carries information from DNA out to the ribosomes so they can create proteins. 10. The main components of all biological membranes are phospholipids, glycolipids, cholesterol, and proteins....
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This note was uploaded on 10/30/2009 for the course SI 0126 taught by Professor Gourney during the Spring '09 term at École Normale Supérieure.
- Spring '09