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3.1.5.5 Catalysts
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Total cards: 4•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (4)
#1
Front (Question)
What is a catalyst?
Back (Answer)
It is a substance that increases the rate of a chemical reaction without being changed in chemical composition or amount It does this by providing an alternative pathway for a reaction with a lower activation energy so that more particles will have enough energy to collide It is specific to each reaction Particles adsorb to the surface of catalysts
#2
Front (Question)
What is an enzyme?
Back (Answer)
A biological catalyst
#3
Front (Question)
What is the optimum?
Back (Answer)
The pH/temperature that yields the highest reaction rate
#4
Front (Question)
What happens to enzymes either side of the optimum?
Back (Answer)
They denature when too hot and become unactive when too cold