Chapter 3 - Enzymes
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9 Terms
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Enzymes
biological catalysts that speed up the rate of chemical reactions without being altered in the reaction.
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Substrate
________ and enzyme molecules have little kinetic energy, hence the frequency of collision is low.
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activation energy
To work at their best, enzymes lower this
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unchanged
The state of enzymes after they have catalyzed a reaction
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lock and key hypotheses
The theory that relates enzyme specificity to the presence of active sites.
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denatured
The state of enzymes after being provided with too much heat
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inactive
The state of enzymes at lower temperatures
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Active site
the region on an enzyme molecule that the substrate binds to.
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Optimum pH
The pH at which enzymes work at their best