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what is needed for a chemical reaction to happen
reactant particles must collide and the collisions must have enough energy
A collision that results in a chemical reaction is described as a
effective collision
The minimum amount of energy needed for a collision to be an effective collision is called the
activation energy
How does temperature effect enzyme activity?
as the temperature increases so the the rate of enzyme activity, this is because heat promotes collisions, until it reaches it’s optimum temperature then the enzymes start to denature
What are two factors that alter the rate of an enzyme-catalysed reaction?
pH and temperature
Note 
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