Which two substances bind using a lock and key mechanism


Asked by maham237 @ in Chemistry viewed by 301 People


enzyme and substrate
reactant and substrate
substrate and product
reactant and product

Answered by maham237 @



The answer is the first option. Enzyme and substrate bind using a lock-and-key mechanism. Enzymes act on a specific substrate and a substrate needs a specific enzyme, this is what is called a lock-and-key mechanism. Enzymes and substtates are like a key and a lock, one is for each other.

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