Which protein class directly controls many of the metabolic reactions within a cell?

Question

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Enzymes are proteins that directly control many of the metabolic reactions within a cell. They act as catalysts, speeding up chemical reactions without being consumed in the process. Structural proteins provide support and shape, repressor proteins block the expression of certain genes, operator proteins bind to DNA to control gene expression, and hydrophilic proteins are water-soluble and often involved in signaling and transport.

Which Protein Class Directly Controls Many of the Metabolic Reactions