Test: GRE Subject Test: Biochemistry, Cell, and Molecular Biology

1.

A researcher is studying the rate of an enzyme-catalyzed reaction by placing increasing amounts of substrate into a solution containing the enzyme. After a certain concentration, the rate of the reaction plateaus and does not go any higher. What has happened?

The concentration of enzyme is so small that the reaction has stopped occurring completely

The enzyme has become saturated

The reaction rate has only momentarily plateaued; given enough time it will increase

The enzyme has become denatured

1/1 questions

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