1. Temperature:
* Optimal Temperature: Enzymes have an optimal temperature at which they function best.
* Increased Temperature: Up to a point, increasing temperature speeds up enzyme activity. This is because heat provides more energy for molecules to collide and react.
* Excessive Temperature: Beyond the optimal temperature, heat can denature the enzyme, changing its shape and rendering it inactive.
2. pH:
* Optimal pH: Each enzyme has an optimal pH range where it works most efficiently.
* Deviation from Optimal pH: Changes in pH can disrupt the enzyme's structure and affect its activity. Extreme pH values can denature the enzyme.
3. Substrate Concentration:
* Low Concentration: At low substrate concentrations, the enzyme reaction rate is directly proportional to the substrate concentration.
* High Concentration: As substrate concentration increases, the reaction rate will eventually plateau. This is because all the active sites of the enzyme molecules are saturated with substrate.
