Like all catalysts, enzymes decrease the energy required to a reaction started. It does this by decreasing the activation energy needed to form the transition state.
The key points for these theories are:
- All reactions involving two reactants require collisions between particles to proceed.
- Not all collisions taking place between particles results in a reaction.
- In the middle of a reaction, there is a configuration of the particles, which is difficult to achieve - this is the
- The total kinetic energy of reactant molecules must be at least as high as the activation energy in order to
achieve the Transition State so the reaction can proceed.
- The Transition State does not always proceed to the products of the reaction - it can also return to reactant molecules.
Transition State Theory