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GCSE Biology Paper 1 (9-1 Exams)

Enzyme Temperature Affect Activity Higher Temperture Increases Rate

Increasing temperature initially increases reaction rate, but excessively high temperatures break the enzyme's bonds, changing its active site's shape and leading to denaturation.

L'aumento della temperatura inizialmente accelera l'attività enzimatica, ma temperature troppo elevate rompono i legami dell'enzima, modificando la forma del suo sito attivo e causandone la denaturazione.

Front How does temperature affect enzyme activity?
Back
  • A higher temperture increases the rate at first
  • But when it gets too hot, some of the bonds holding the enzyme together break
  • This changes the shape of the enzyme's active site, so the substrate won't fit any more
  • The enzyme is said to be denatured

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