Learning objectives – to learn how enzymes work and the conditions
required for them to work.
Enzymes are the catalysts for all living processes changed in the reaction
Enzymes have a particular shape which allows them to bind to certain
molecules. Each enzyme is unique and only fits the substrate that it is
designed to fit.
Enzymes have an active site, which binds to the substrate; the substrate is
the molecule being broken down by the enzymes.
This illustration highlights how an enzyme works.
Rates of reactions