Biology for IGCSE & O level - Enzymes (Section 3 - No. 43)

In an enzymatic reaction, what is the role of the substrate?
The substrate is the enzyme that catalyzes the reaction.
The substrate is the molecule that is broken down or transformed by the enzyme.
The substrate provides energy for the reaction.
The substrate is a byproduct of the reaction.

Explanation

The substrate is the reactant that binds to the active site of the enzyme and is converted into product.

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