character: Mr. Reactant
topic: Enzymes and Their Effect on Metabolism
grade: 9
subject: Science
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character: Catalyst Carl
topic: Role of Catalysts in Chemical Reactions
grade: 9
subject: Science
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character: Eddie Energy
topic: Energy Changes in Metabolic Reactions
grade: 9
subject: Science
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character: Sally Substrate
topic: How Substrates Interact with Enzymes
grade: 9
subject: Science
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