GCSE Biology - Enzymes - How Temperature and pH Affect Rate of Reaction

The video explains how temperature and pH affect enzyme activity. It shows that increasing temperature initially increases reaction rates due to higher kinetic energy, but excessive heat leads to enzyme denaturation. The optimal temperature for most enzymes is around 37°C. Similarly, pH levels that are too high or too low can denature enzymes by altering their active sites. Enzymes have specific optimal pH levels depending on their environment, such as a pH of 7 for most body enzymes and 2 for stomach enzymes.

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