Some simple definitions
These definitions came directly from the Enzymes part 1 and 2 JM videos. I think that they are very good, simple definitions that are easy to remember so we are sharing it with you for revision!
Enzymes- biological catalysts that speed up a chemical reaction by providing an alternative route with a lower activation energy
Activation energy- minimum amount of energy needed for a reaction to occur
Transition state- highest energy arrangement of atoms that is intermediate in structure between the structure of the reactants and product
Turnover number or Kcat – the number of molecules of substrate converted to product per enzyme molecule per second
Active site- specific site on the enzyme where substrate binds and catalysis occurs; usually looks like a pocket or cleft