OCR GCSE Chemistry B · J258
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: EnzymesEach enzyme works fastest within a narrow range of temperature and pH around its optimum. Conditions outside that range reduce its activity. A temperature that is too high, or an unsuitable pH, can change the shape of the active site so that the substrate no longer binds effectively.
- Revise: Sample size and range
A value at which the measured outcome is greatest or most favourable under the stated criterion.