Respuesta :

Enzymes and a single substrate use the lock-and-key mechanism.
The "lock" is the enzyme and the "key" is the substrate
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Answer:

Enzymes and Substrate

Explanation:

The lock and Key mechanism was first postulated in 1894 by Emil Fischer. In this analogy, the lock is the enzyme which has a definite shape, with only a keyhole which fits exactly to the right key, that its then the substrate. This mechanism is used to explain the way enzymes are specific or can only degrade a certain substrate.