Question

Describe the role extreme temperatures play in enzymatic action.

Answer 1

as temperature increases, the speed of the substrate and the enzyme increase. This increases the enzyme activity - its simply more probable that that the enzyme and the substrate will meet and bond.
The activity increases till an optimum is reached (optimum termperature). From that point on, the activity of the enzyme decreases as it starts to denature (i.e. loses its tertiary structure - remember that for enzymes structure and function are highly related!). It will eventually reach zero when the enzyme has lost its shape completely and can no longer work.

Answer 2

Thank you friend