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OpenStudy (anonymous):

Three functions of proteins in cells

OpenStudy (rina.r):

1- The best-known role of proteins in the cell is their duty as enzymes, which catalyze chemical reactions. 2- Proteins are also necessary in animals' diets, since animals cannot synthesize all the amino acids they need and must obtain essential amino acids from food 3- Many proteins are involved in the process of cell signaling and signal transduction Also: Enzymes, Hormones, Growth, Maintenance of body tissues, Antibodies and Energy source... http://answers.yahoo.com/question/index?qid=20080708210932AANG6y5

OpenStudy (petiteme):

Welcome to OpenStudy! ^_^

OpenStudy (poopsiedoodle):

Notice how this isn't actually a question.

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