CAIE IGCSE Biology 5.1.5 Temperature, pH & enzyme activity
CAIE IGCSE Biology 5.1.5 Temperature, pH & enzyme activity
Practise interpreting enzyme activity graphs and explaining how temperature or pH changes alter active-site fit, reaction rate and denaturation.
How this is tested
- describe activity curves by locating optimum temperature or pH and where activity falls to zero
- explain loss of activity using denaturation, changed active-site shape and reduced substrate binding
- apply enzyme ideas to investigations,