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A-Level Biology OCR A

Catabolic Anabolic Reactions Metabolic Molecules Smaller Units Energy

Catabolic reactions break down molecules and release energy, while anabolic reactions build molecules and require energy.

Catabolic reactions break down larger molecules into smaller ones, releasing energy, while anabolic reactions construct larger molecules from smaller ones, requiring energy.

Front What are catabolic and anabolic reactions?
Back Catabolic reactions:
  • Metabolic reactions where larger molecules are broken down into smaller units
  • Release energy

Anabolic reactions:
  • Metabolic reations where molecules are constructed from smaller units
  • Require energy

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