Microbiology, part 18: Metabolism - Enzymes

Enzymes. How an enzyme is a catalyst that lowers the activation energy in chemical reactions. Factors that affect enzyme activity, including pH, temperature, and substrate concentration. Structure of an enzyme, including a discussion of an apoenzyme, cofactors and coenzymes, and a holoenzyme. Molecules and mechanisms that increase or decrease enzyme activity, including: competitive inhibitors, noncompetitive (or allosteric) inhibitors, allosteric activators, and feedback inhibition (i.e., negative feedback).