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Enzymes
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Enzyme shape distorts or it changes other factors to make the reaction happen

Slide 11

“Activation Energy”

“Activation Energy”

In a ‘natural’ reaction the product has a lower energy than the substrate so equilibrium will take it in the direction of the product.

However there is an energy ‘barrier’ to be overcome

Enzymes lower the activation energy required to bring about a reaction.

EG catalase reduces the activation energy for the reduction of H202 86-fold

Slide 12

“Activation Energy”

Slide 13

Reaction rate factors

Reaction rate factors

Substrate concentration

Initially rate increases with substrate conc.

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