Enzymes and Metabolic Reactions

Enzymes and Metabolic Reactions

12th Grade · Biology · 60 min

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Learning Objective

Enzymes speed up metabolic reactions by lowering energy barriers; and regulation of enzyme activity helps control metabolism

  • 1

    Enzymes are chemicals that speed up a reaction, but are not consumed in the reaction.

  • 2

    An enzyme's active site is where the substrate binds, allowing a chemical tug that lowers activation energy.

  • 3

    Competitive inhibition is when a chemical blocks the active site, while allosteric inhibition changes the enzyme's shape.