How Do Enzymes Work? (AQA A-Level Biology): Flashcards
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Practise the cards
10 cards from this deck
Activation energy
Activation energy
Min. energy to break bonds & form new ones
Enzymes
Enzymes
Biological catalysts that lower activation energy
How enzymes speed up reactions
How enzymes speed up reactions
Provide alternative pathway requiring less energy
What enzymes don't change
What enzymes don't change
Overall energy change, final products of reaction
Effect of enzymes on activation energy
Effect of enzymes on activation energy
Makes it much lower
source in cells
source in cells
By-product of metabolism
Catalase function
Catalase function
Breaks down hydrogen peroxide into water & oxygen
breakdown equation
breakdown equation
What happens without catalase?
What happens without catalase?
accumulates & damages components
Substrate
Substrate
Molecule that binds to enzyme for reaction
