Biology / Unit 3 Bio 0516 short lesson, about 20 seconds
The Active Site and Substrate Specificity
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The idea
An enzyme's active site is the region where its substrate binds, its amino acid arrangement shaped to fit one substrate or a narrow set.
In practice
Each enzyme in a metabolic pathway binds only its own substrate, so glycolysis's ten steps require ten different enzymes.
Where people slip
Specificity comes from the active site's precise shape and chemistry, not general stickiness to organic molecules.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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