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# Enzyme Activity Notes **Introduction** * Big Picture: Enzymes are proteins. * Made up of amino acids. * Amino acid is a monomer of protein. **Factors Affecting Enzyme Activity** * **Temperature:** * Optimal temp is 37 degrees. * Too high or too low, the bonds in the enzyme start breaki...

# Enzyme Activity Notes **Introduction** * Big Picture: Enzymes are proteins. * Made up of amino acids. * Amino acid is a monomer of protein. **Factors Affecting Enzyme Activity** * **Temperature:** * Optimal temp is 37 degrees. * Too high or too low, the bonds in the enzyme start breaking, causing denaturation. * **pH:** * Optimal pH is neutral. * Too acidic or basic causes the active site to change shape, and reactants can no longer fit. * **Environment:** Changes in the environment (like temp and pH) can cause changes in the active site leading to the enzyme not being able to work. **Diagram** The image contains a diagram showing the relationship between the factors and enzyme activity. The enzyme is represented as a simple shape undergoing changes as a consequence of changes in temperature or pH. **Graphic Summary** * There is a graph showing optimal pH. The graph shows a bell shaped curve, showing the optimal pH with the highest activity. * **Substrate- Reactant** The substrate is depicted as a reactant. * **Diagram of enzyme changing shape:** The graphic illustrates how the structure of the active site on the enzyme changes with temperature and pH variations. This change in structure makes it difficult for the reactants to fit and the enzyme cannot therefore work effectively.