6. Environmental Factors Environmental Factors can affect enzymes activity. Temperature pH Salt More… Really cold…slows down enzymes Too hot, too salty, pH…DENATURE (unfold, change shape) Denatured protein
Questions??? Quick review: What type of macromolecule are enzymes? What is the “lock-and-key” model mean? How do enzymes speed up chemical reactions? What are the two types of competitors? How do they work? What factors can affect enzyme activity?