Answer
Factors that affect enzyme function are regulatory molecules, pH levels, and temperature conditions.
Work Step by Step
Enzymes generally work under very specific conditions. Human enzymes work ideally with temperatures close to 37$^{\circ}$C. Certain human enzymes work at certain pH levels; for example, pepsin is an enzyme found in the stomach that catalyzes the reaction that breaks peptide bonds in proteins under very acidic conditions. Additionally, the actions of enzymes can be turned on or off by regulatory molecules.