Question

Catalysts
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Which two substances bind using a lock-and-key mechanism?
O enzyme and substrate
reactant and substrate
O substrate and product
O reactant and product

Answer 1

ANSWER:

Enzymes and Substrate bind using a lock and key mechanism.

EXPLANATION:

• Enzymes are molecules or proteins that help to speed up the "rate of chemical reactions" that occur within a cell.

• They are fundamental for life and help in metabolism and digestion. These enzymes work with a specific molecule known as substrate.

• In order to perform a chemical reaction, the enzyme shapes itself precisely to fit a specific substrate.

• If they don’t fit, they both alter and modify their shape and size to bind. This is known as enzyme-substrate interaction.