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← All unitsTEKS B.11B

Enzymes

Explore how enzymes speed up chemical reactions in cells without being consumed or changed themselves.

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Misconception 1: Enzyme Depletion Fallacy

Use a card-flip model to see that enzymes stay unchanged while their substrate is transformed.

Misconception 2: Universal Catalyst Fallacy

Use a restaurant-coupon analogy to see why an enzyme's active site only fits one specific substrate.

Photosynthesis, Respiration & Enzymes

A quick review of how energy flows through photosynthesis and cellular respiration, plus how enzymes work — teaches each fact once, then tests it, and brings back anything you're still shaky on until it sticks.

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