IG 5.2 Lesson: Factors that affect enzymes

Denaturation = to lose shape

• Structure (shape) = function

• If enzymes lose their shape they no longer function correctly

• Lower enzyme function = slower reaction rates

• Factors that can affect shape & function of enzymes: Temperature, pH, salinity (ion concentration)

Factors affecting reaction rates

• Substrate concentration

• Enzyme concentration

• pH, temperature, and ion concentrations

Optimal Enzyme Function

When the reaction rate is the highest!