1. Temperature: Enzymes have an optimal temperature range where they function best.
* Below optimal: The enzyme's activity slows down as the molecules move more slowly.
* Above optimal: The enzyme's structure can begin to break down (denature), leading to a loss of function.
2. pH: Enzymes also have an optimal pH range.
* Outside the optimal range: The pH can disrupt the enzyme's structure and its ability to bind to its substrate.
It's important to note that these are just two variables that impact enzyme function. Other factors include:
* Substrate concentration: Higher substrate concentration generally leads to increased enzyme activity until saturation is reached.
* Presence of inhibitors: Inhibitors can bind to enzymes and block their activity.
* Cofactors and coenzymes: Some enzymes require these non-protein molecules to function properly.
