Proteins are the primary macromolecules that serve as structural components of the cell, function as enzymes to catalyze biochemical reactions, and play crucial roles in cell movement and communication. Additionally, lipids can also contribute to cell structure, particularly in membranes, and some lipid-derived molecules are involved in signaling pathways. Carbohydrates may be involved in cell recognition and signaling, while nucleic acids primarily serve as genetic material rather than structural or functional roles in movement or communication.
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